:root {
            --primary: #6366f1;
            --primary-glow: rgba(99, 102, 241, 0.4);
            --bg-body: #f1f5f9;
            --bg-card: rgba(255, 255, 255, 0.6);
            --text-main: #0f172a;
            --text-muted: #64748b;
            --border: rgba(255, 255, 255, 0.8);
            --card-border: rgba(255, 255, 255, 0.5);
            --shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.05), 0 0 20px rgba(255, 255, 255, 0.5) inset;
            --input-bg: rgba(255, 255, 255, 0.8);
            --header-height: 6rem;
            --glass-blur: blur(24px);
            --bg-card-safari: rgba(255, 255, 255, 0.92);
            --bg-header-safari: rgba(241, 245, 249, 0.85);
            --bg-modal-safari: rgba(30, 30, 30, 0.7);
        }

        .dark-theme {
            --bg-body: #05050a;
            --bg-card: rgba(15, 15, 25, 0.55);
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --border: rgba(255, 255, 255, 0.08);
            --card-border: rgba(255, 255, 255, 0.05);
            --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 20px rgba(255, 255, 255, 0.02) inset;
            --input-bg: rgba(25, 25, 35, 0.6);
            --bg-card-safari: rgba(25, 25, 35, 0.9);
            --bg-header-safari: rgba(5, 5, 10, 0.8);
            --bg-modal-safari: rgba(10, 10, 10, 0.7);
        }

        body { 
            font-family: 'Plus Jakarta Sans', sans-serif; 
            background-color: var(--bg-body); 
            color: var(--text-main);
            transition: background-color 0.35s cubic-bezier(0.4, 0, 0.2, 1), color 0.35s ease;
            overflow-x: hidden; 
            min-height: 100vh;
        }

        /* Loading Screen */
        #loading-screen {
            position: fixed; inset: 0; z-index: 9999;
            background: var(--bg-body);
            display: flex; flex-direction: column; align-items: center; justify-content: center;
            transition: opacity 0.4s ease, visibility 0.4s;
        }
        .pulse-logo { animation: pulseGlow 2s infinite alternate ease-in-out; will-change: transform; }
        @keyframes pulseGlow {
            0% { transform: scale(1); box-shadow: 0 0 20px var(--primary-glow); }
            100% { transform: scale(1.05); box-shadow: 0 0 50px var(--primary-glow); }
        }

        /* Blobs */
        .blobs-container {
            position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
            overflow: hidden; z-index: -1; pointer-events: none;
            contain: strict;
        }
        .blob {
            position: absolute; border-radius: 50%; filter: blur(70px); opacity: 0.6;
            animation: floatBlob 20s infinite alternate cubic-bezier(0.45, 0, 0.55, 1);
            will-change: transform; transform: translateZ(0); backface-visibility: hidden;
            contain: strict;
        }
        .blob-1 { width: 60vw; height: 60vw; background: rgba(99, 102, 241, 0.15); top: -10%; left: -10%; animation-duration: 25s; }
        .blob-2 { width: 50vw; height: 50vw; background: rgba(168, 85, 247, 0.15); bottom: -20%; right: -10%; animation-duration: 28s; animation-delay: -5s; }
        .blob-3 { width: 40vw; height: 40vw; background: rgba(56, 189, 248, 0.15); top: 30%; left: 40%; animation-duration: 35s; animation-delay: -10s; }

        .dark-theme .blob-1 { background: rgba(99, 102, 241, 0.1); }
        .dark-theme .blob-2 { background: rgba(168, 85, 247, 0.1); }
        .dark-theme .blob-3 { background: rgba(56, 189, 248, 0.08); }

        @keyframes floatBlob { 0% { transform: translate(0, 0) scale(1); } 100% { transform: translate(10%, 15%) scale(1.1); } }

        /* Glassmorphism */
        .glass-card {
            background: var(--bg-card); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
            border: 1px solid var(--card-border); box-shadow: var(--shadow);
            transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
            contain: layout style;
            content-visibility: auto;
            contain-intrinsic-size: auto 200px;
        }
        .glass-card:hover { transform: translateY(-2px); box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.08), 0 0 15px rgba(255, 255, 255, 0.5) inset; }
        .dark-theme .glass-card:hover { box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.7), 0 0 15px rgba(255, 255, 255, 0.03) inset; }

        /* Safari-specific overrides (no blur) */
        .is-safari .glass-card {
            background: var(--bg-card-safari);
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
        }
        .is-safari header {
            background: var(--bg-header-safari);
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
        }
        .is-safari .modal-overlay {
            background: var(--bg-modal-safari);
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
        }

        /* ======= macOS — all browsers (backdrop-filter replacement) =======
           Uses layered solid backgrounds, gradients, rich shadows & borders
           for a premium look without any backdrop-filter dependency.
           Does NOT affect Windows or Linux. */

        /* -- macOS Light theme -- */
        .is-macos .glass-card {
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
            background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(245,247,255,0.92) 100%);
            border: 1px solid rgba(255,255,255,0.7);
            box-shadow:
                0 1px 1px rgba(0,0,0,0.02),
                0 4px 8px -2px rgba(0,0,0,0.04),
                0 16px 32px -8px rgba(99,102,241,0.06),
                inset 0 1px 0 rgba(255,255,255,0.9),
                inset 0 -1px 0 rgba(0,0,0,0.02);
        }
        .is-macos .glass-card:hover {
            box-shadow:
                0 1px 1px rgba(0,0,0,0.02),
                0 8px 16px -4px rgba(0,0,0,0.06),
                0 24px 48px -12px rgba(99,102,241,0.1),
                inset 0 1px 0 rgba(255,255,255,0.95),
                inset 0 -1px 0 rgba(0,0,0,0.02);
        }

        .is-macos header {
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
            background: linear-gradient(180deg, rgba(241,245,249,0.97) 0%, rgba(241,245,249,0.92) 100%);
            border-bottom: 1px solid rgba(0,0,0,0.06);
            box-shadow: 0 1px 3px rgba(0,0,0,0.03);
        }

        .is-macos .modal-overlay {
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
            background: rgba(15,23,42,0.45);
        }

        .is-macos .modal-content {
            background: linear-gradient(135deg, rgba(255,255,255,0.98) 0%, rgba(248,250,255,0.96) 100%);
            border: 1px solid rgba(255,255,255,0.6);
            box-shadow:
                0 24px 80px -16px rgba(0,0,0,0.15),
                0 8px 24px -8px rgba(0,0,0,0.08),
                inset 0 1px 0 rgba(255,255,255,0.95);
        }

        .is-macos .dropdown-menu {
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
            background: linear-gradient(135deg, rgba(255,255,255,0.98) 0%, rgba(248,250,255,0.96) 100%);
            border: 1px solid rgba(0,0,0,0.08);
            box-shadow:
                0 12px 40px -8px rgba(0,0,0,0.12),
                0 4px 12px -2px rgba(0,0,0,0.06),
                inset 0 1px 0 rgba(255,255,255,0.9);
        }

        .is-macos .toast {
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
            background: linear-gradient(135deg, rgba(255,255,255,0.97) 0%, rgba(248,250,255,0.95) 100%);
            border: 1px solid rgba(0,0,0,0.06);
            box-shadow:
                0 8px 30px -6px rgba(0,0,0,0.1),
                0 2px 8px -2px rgba(0,0,0,0.05),
                inset 0 1px 0 rgba(255,255,255,0.9);
        }

        .is-macos input {
            background: rgba(255,255,255,0.85);
            border: 1px solid rgba(0,0,0,0.08);
        }
        .is-macos input:focus {
            background: rgba(255,255,255,0.95);
        }

        /* -- macOS Dark theme -- */
        .is-macos.dark-theme .glass-card {
            background: linear-gradient(135deg, rgba(22,22,35,0.95) 0%, rgba(18,18,30,0.92) 100%);
            border: 1px solid rgba(255,255,255,0.06);
            box-shadow:
                0 1px 1px rgba(0,0,0,0.1),
                0 4px 8px -2px rgba(0,0,0,0.2),
                0 16px 32px -8px rgba(0,0,0,0.3),
                inset 0 1px 0 rgba(255,255,255,0.04),
                inset 0 -1px 0 rgba(0,0,0,0.1);
        }
        .is-macos.dark-theme .glass-card:hover {
            box-shadow:
                0 1px 1px rgba(0,0,0,0.1),
                0 8px 16px -4px rgba(0,0,0,0.3),
                0 24px 48px -12px rgba(99,102,241,0.15),
                inset 0 1px 0 rgba(255,255,255,0.06),
                inset 0 -1px 0 rgba(0,0,0,0.1);
        }

        .is-macos.dark-theme header {
            background: linear-gradient(180deg, rgba(8,8,16,0.97) 0%, rgba(5,5,12,0.94) 100%);
            border-bottom: 1px solid rgba(255,255,255,0.05);
            box-shadow: 0 1px 4px rgba(0,0,0,0.3);
        }

        .is-macos.dark-theme .modal-overlay {
            background: rgba(0,0,0,0.55);
        }

        .is-macos.dark-theme .modal-content {
            background: linear-gradient(135deg, rgba(22,22,38,0.98) 0%, rgba(15,15,28,0.96) 100%);
            border: 1px solid rgba(255,255,255,0.06);
            box-shadow:
                0 24px 80px -16px rgba(0,0,0,0.5),
                0 8px 24px -8px rgba(0,0,0,0.3),
                inset 0 1px 0 rgba(255,255,255,0.04);
        }

        .is-macos.dark-theme .dropdown-menu {
            background: linear-gradient(135deg, rgba(22,22,38,0.98) 0%, rgba(15,15,28,0.96) 100%);
            border: 1px solid rgba(255,255,255,0.06);
            box-shadow:
                0 12px 40px -8px rgba(0,0,0,0.4),
                0 4px 12px -2px rgba(0,0,0,0.25),
                inset 0 1px 0 rgba(255,255,255,0.04);
        }

        .is-macos.dark-theme .toast {
            background: linear-gradient(135deg, rgba(22,22,38,0.97) 0%, rgba(15,15,28,0.95) 100%);
            border: 1px solid rgba(255,255,255,0.06);
            box-shadow:
                0 8px 30px -6px rgba(0,0,0,0.35),
                0 2px 8px -2px rgba(0,0,0,0.2),
                inset 0 1px 0 rgba(255,255,255,0.04);
        }

        .is-macos.dark-theme input {
            background: rgba(25,25,40,0.85);
            border: 1px solid rgba(255,255,255,0.06);
        }
        .is-macos.dark-theme input:focus {
            background: rgba(30,30,48,0.95);
        }

        /* macOS blob refinement — softer glow to match solid backgrounds */
        .is-macos .blob { opacity: 0.35; }
        .is-macos.dark-theme .blob { opacity: 0.2; }

        /* Inputs & Fraction Bar */
        input { background: var(--input-bg); border: 1px solid var(--border); transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1); }
        input:focus { background: var(--bg-card); border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-glow); }
        
        .fraction-input-container input { border: none; background: transparent; box-shadow: none; }
        .fraction-bar {
            height: 4px; width: 40%; background: linear-gradient(90deg, #6366f1, #a855f7);
            border-radius: 4px; transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
        }
        .fraction-input-container:focus-within .fraction-bar {
            width: 80%; box-shadow: 0 0 15px rgba(99, 102, 241, 0.6); height: 6px;
        }

        /* Animations Utils */
        .animate-entrance { animation: fadeUpSoft 0.45s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
        @keyframes fadeUpSoft { from { opacity: 0; transform: translateY(20px) translateZ(0); } to { opacity: 1; transform: translateY(0) translateZ(0); } }

        .dropdown-menu {
            transform: scale(0.95) translateY(-10px); opacity: 0; pointer-events: none;
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); visibility: hidden; transform-origin: top right;
        }
        .dropdown-menu.show { transform: scale(1) translateY(0); opacity: 1; pointer-events: auto; visibility: visible; }

        /* Modals */
        .modal-overlay {
            position: fixed; inset: 0; background: rgba(0,0,0,0.4); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
            z-index: 999; opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
            display: flex; align-items: center; justify-content: center;
            contain: layout style;
        }
        .modal-overlay.open { opacity: 1; pointer-events: auto; }
        .modal-content {
            transform: scale(0.9) translateY(20px); opacity: 0; transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
            will-change: transform, opacity;
        }
        .modal-overlay.open .modal-content { transform: scale(1) translateY(0); opacity: 1; }

        /* Tabs */
        .tab-btn.active { color: var(--primary); background: var(--primary-glow); }

        .color-dot { width: 2rem; height: 2rem; border-radius: 50%; cursor: pointer; transition: all 0.3s; border: 2px solid transparent; }
        .color-dot:hover { transform: scale(1.1); }
        .color-dot.active { transform: scale(1.3); border: 2px solid var(--bg-body); box-shadow: 0 0 20px currentColor; }

        .history-content { max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease; opacity: 0; }
        .history-content.open { max-height: 5000px; opacity: 1; }
        canvas { width: 100% !important; height: 100% !important; }

/* Toggle Theme Animation */
        .theme-icon-wrapper { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1); }
        
        /* Sun active (Light mode) */
        .light-mode .sun-icon { transform: translateY(0); }
        .light-mode .moon-icon { transform: translateY(-100%); opacity: 0; }
        /* Moon active (Dark mode) */
        .dark-theme .sun-icon { transform: translateY(100%); opacity: 0; }
        .dark-theme .moon-icon { transform: translateY(0); opacity: 1; }

        /* Settings Modal Tabs */
        .settings-tab-btn {
            padding: 0.75rem 1.25rem;
            font-weight: 700;
            font-size: 0.875rem;
            color: var(--text-muted);
            border-bottom: 3px solid transparent;
            transition: all 0.3s;
            margin-bottom: -2px; /* Overlap border */
        }
        .settings-tab-btn:hover {
            color: var(--text-main);
        }
        .settings-tab-btn.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        /* Collapsible Main Card */
        #main-card-content { transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1); max-height: 2000px; }
        #main-card:not(.collapsed) #main-card-content { overflow: visible; }
        #main-card.collapsed #main-card-content { max-height: 0; opacity: 0; padding-top: 0; padding-bottom: 0; margin-top: -2rem; overflow: hidden; }

        /* Settings-driven classes */
        .zen-mode .blobs-container, .zen-mode #moyenne-gen { display: none; }
        .no-blur .glass-card, .no-blur header, .no-blur .modal-overlay { -webkit-backdrop-filter: none !important; backdrop-filter: none !important; }
        .fixed-nav header { position: sticky; top: 0; }
        .fixed-nav body { padding-top: var(--header-height); }
        .no-animations * { transition: none !important; animation: none !important; }
        .dyslexic-font { font-family: 'OpenDyslexic', sans-serif !important; } /* Requires font import */
        .high-contrast { --text-main: #000; --text-muted: #444; --bg-body: #fff; --primary: #0000FF; }
        .dark-theme.high-contrast { --text-main: #fff; --text-muted: #ccc; --bg-body: #000; --primary: #FFFF00; }

        /* Chart Controls */
        .chart-type-btn { text-align: left; width: 100%; padding: 0.5rem 0.75rem; font-weight: 700; border-radius: 0.5rem; transition: all 0.2s; }
        .chart-type-btn:hover { background-color: var(--primary-glow); color: var(--primary); }

        /* Mobile/Touch device optimizations */ 
        @media (hover: none) {
            .glass-card:hover {
                transform: translateY(0);
                box-shadow: var(--shadow);
            }
            .dark-theme .glass-card:hover {
                box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 20px rgba(255, 255, 255, 0.02) inset;
            }
            .pin-btn:hover {
                transform: scale(1);
            }
            .color-dot:hover {
                transform: scale(1);
            }
            .blob {
                animation-play-state: paused;
                will-change: auto;
            }
        }
    .pin-btn { height: 4.5rem; font-size: 1.5rem; font-weight: 800; border-radius: 1.5rem; background: var(--input-bg); border: 1px solid var(--border); transition: all 0.2s; }
    .pin-btn:hover { background: var(--bg-card); border-color: var(--primary); transform: scale(1.05); }
    .pin-btn:active { transform: scale(0.95); }
    @keyframes shake {
      10%, 90% { transform: translate3d(-1px, 0, 0); }
      20%, 80% { transform: translate3d(2px, 0, 0); }
      30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
      40%, 60% { transform: translate3d(4px, 0, 0); }
    }
    .modal-content.animate-shake { animation: shake 0.82s cubic-bezier(.36,.07,.19,.97) both; }
    
    /* Styled Checkbox */
    .styled-checkbox { appearance: none; background-color: var(--input-bg); border: 2px solid var(--border); width: 1.25rem; height: 1.25rem; border-radius: 0.5rem; display: grid; place-content: center; transition: all 0.2s; cursor: pointer; }
    .styled-checkbox::before { content: ""; width: 0.75rem; height: 0.75rem; transform: scale(0); transition: 0.2s transform ease-in-out; box-shadow: inset 1em 1em var(--primary); transform-origin: center; clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%); }
    .styled-checkbox:checked::before { transform: scale(1); }
/* Disable body scroll when modal is open */
body.modal-open {
    overflow: hidden;
}
    .styled-checkbox:checked { border-color: var(--primary); }

/* Phone-restricted experience compact styles */
.phone-xp body, .phone-xp .glass-card, .phone-xp .modal-content { font-size: 14px; }
.phone-xp .glass-card { padding: 0.75rem !important; }
.phone-xp #main-card { padding: 1rem !important; }
.phone-xp #main-card .fraction-input-container input { font-size: 2rem !important; }
.phone-xp .tab-btn { padding: 0.5rem 0.75rem !important; }
.phone-xp header { height: 3.5rem !important; }
.phone-xp header .text-2xl { font-size: 1.1rem !important; }
.phone-xp .chart-type-btn { padding: 0.4rem 0.5rem; font-size: 0.85rem; }
.phone-xp .glass-card.h-\[28rem\] { height: 18rem; }
.phone-xp .w-12.h-12 { width: 40px !important; height: 40px !important; }
.phone-xp .pulse-logo { width: 3.5rem; height: 3.5rem; }
.phone-xp .fraction-bar { height: 3px; }
.phone-xp .history-content { transition: none; }

/* Specific hide elements for phone XP */
.phone-xp footer { display: none !important; }
.phone-xp .theme-icon-wrapper { display: none !important; }
.phone-xp .pin-btn { height: 3.25rem !important; }
.phone-xp nav { display: none !important; }
.phone-switch-btn { display: none; }
.phone-xp .phone-switch-btn { display: block; }
.phone-xp nav { display: none !important; }

/* Mobile modal sizing */
.phone-xp .modal-content { max-width: 92vw !important; padding: 1.25rem !important; }
.phone-xp .modal-overlay { align-items: flex-start; padding-top: 3.5rem; }

/* Mobile floating button */
/* Styling for mobile tab switch buttons */
.phone-xp .phone-switch-btn button {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.9), rgba(168, 85, 247, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: white;
}
.phone-xp .phone-switch-btn button:hover {
  transform: scale(1.02);
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem 1.5rem;
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.95rem;
  backdrop-filter: var(--glass-blur);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.1);
  pointer-events: auto;
  animation: slideInToast 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 320px;
}

@keyframes slideInToast {
  from {
    opacity: 0;
    transform: translateX(400px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideOutToast {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(400px);
  }
}

.toast.removing {
  animation: slideOutToast 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.toast.success {
  border-color: rgba(34, 197, 94, 0.3);
}
.toast.success::before {
  content: "✓";
  color: #22c55e;
  font-weight: 800;
  font-size: 1.2rem;
}

.toast.error {
  border-color: rgba(239, 68, 68, 0.3);
}
.toast.error::before {
  content: "✕";
  color: #ef4444;
  font-weight: 800;
  font-size: 1.2rem;
}

.toast.info {
  border-color: rgba(59, 130, 246, 0.3);
}
.toast.info::before {
  content: "ℹ";
  color: #3b82f6;
  font-weight: 800;
  font-size: 1.1rem;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   - xs: max-width 480px (petits téléphones)
   - sm: max-width 640px (téléphones)
   - md: max-width 768px (tablettes portrait)
   - lg: max-width 1024px (tablettes paysage / petit laptop)
   - xl: min-width 1280px (grands écrans)
   ============================================ */

/* --- GRAND ÉCRAN (xl: 1280px+) --- */
@media (min-width: 1280px) {
  main { max-width: 80rem; }
  #charts-grid { grid-template-columns: repeat(2, 1fr); }
}

/* --- TABLETTES PAYSAGE / PETIT LAPTOP (max-width: 1024px) --- */
@media (max-width: 1024px) {
  header .max-w-7xl { padding-left: 1rem; padding-right: 1rem; }
  main { padding-left: 1rem; padding-right: 1rem; }
  #charts-grid { grid-template-columns: 1fr; }
  .settings-tab-btn { padding: 0.5rem 0.75rem; font-size: 0.8rem; }
}

/* --- TABLETTES PORTRAIT (max-width: 768px) --- */
@media (max-width: 768px) {
  header { height: auto !important; min-height: 3.5rem; }
  header .max-w-7xl {
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
  }
  header nav { order: 3; width: 100%; justify-content: center; }
  header nav .tab-btn { flex: 1; text-align: center; padding: 0.5rem 0.75rem; font-size: 0.7rem; }

  main { padding: 0.75rem; padding-top: 1rem; }
  main .py-12 { padding-top: 1.5rem; padding-bottom: 1.5rem; }

  .glass-card { border-radius: 1.5rem; }
  #main-card { padding: 1.25rem !important; border-radius: 1.5rem; }
  #main-card .rounded-\[2\.5rem\] { border-radius: 1.25rem; }

  .modal-content {
    margin: 0.75rem;
    max-width: calc(100vw - 1.5rem);
    max-height: 90vh;
    border-radius: 1.5rem !important;
    padding: 1.25rem !important;
  }
  .modal-overlay { padding: 0.5rem; align-items: center; }

  /* Paramètres tabs scrollables */
  #settings-modal .flex.border-b { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  #settings-modal .flex.border-b::-webkit-scrollbar { display: none; }
  .settings-tab-btn { white-space: nowrap; flex-shrink: 0; padding: 0.5rem 0.75rem; font-size: 0.75rem; }

  footer .flex { flex-wrap: wrap; gap: 0.5rem; }

  /* Charts sidebar empilée */
  #tab-charts .lg\:w-96 { width: 100%; position: static; }
  #tab-charts .lg\:sticky { position: static; }
}

/* --- TÉLÉPHONES (max-width: 640px) --- */
@media (max-width: 640px) {
  /* Smaller blobs on mobile for better GPU performance */
  .blob { filter: blur(50px); opacity: 0.4; }
  .blob-1 { width: 40vw; height: 40vw; }
  .blob-2 { width: 35vw; height: 35vw; }
  .blob-3 { width: 30vw; height: 30vw; }

  #toast-container {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
  }
  .toast {
    max-width: 100%;
  }

  .glass-card {
    margin: 0.25rem 0;
    border-radius: 1.25rem;
  }

  /* Touch targets Apple/Android minimum 44px */
  button, .btn, input[type="button"], input[type="submit"] {
    min-height: 44px;
  }

  input, select, textarea {
    font-size: 1rem;
    min-height: 44px;
  }

  .modal-content {
    margin: 0.5rem;
    max-width: calc(100vw - 1rem);
    max-height: 92vh;
    padding: 1rem !important;
    border-radius: 1.25rem !important;
  }
  .modal-overlay { padding: 0.25rem; }

  .tab-btn {
    padding: 0.5rem 0.5rem;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
  }

  header {
    height: auto !important;
    min-height: 3rem;
    padding: 0.5rem;
  }
  header .max-w-7xl {
    padding: 0 0.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  header nav {
    order: 3;
    width: 100%;
    justify-content: center;
  }
  header nav .tab-btn {
    flex: 1;
    text-align: center;
  }

  /* Header buttons plus compacts */
  header .w-12.h-12, header .h-12 {
    width: 2.5rem !important;
    height: 2.5rem !important;
  }
  header .w-10.h-10 { width: 2rem !important; height: 2rem !important; }
  header .rounded-2xl { border-radius: 0.75rem; }

  /* Login screen */
  #login-screen .glass-card { padding: 2rem 1.25rem; border-radius: 1.5rem; }
  #login-screen .w-20.h-20 { width: 3.5rem; height: 3.5rem; border-radius: 1rem; }
  #login-screen .text-3xl { font-size: 1.5rem; }

  /* User selection */
  #user-selection-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 1rem; }
  #user-selection-screen h1 { font-size: 1.75rem; }
  #user-selection-screen .text-lg { font-size: 0.9rem; }

  /* Main card form */
  #main-card { padding: 1rem !important; }
  #main-card h2 { font-size: 1.25rem; }
  #calc-form .text-4xl { font-size: 2rem; }
  #calc-form .text-xl { font-size: 1rem; }
  .fraction-bar { width: 50%; }
  .fraction-input-container { padding: 0.5rem 0; }
  #calc-form .md\:w-32 { width: 100%; height: 3.5rem; }
  #calc-form .md\:h-32 { height: 3.5rem; }

  /* Sidebar des graphiques */
  #tab-charts > div { flex-direction: column; }
  #tab-charts .lg\:w-96 { width: 100%; }
  
  /* Grades actions */
  #grades-actions { flex-wrap: wrap; gap: 0.5rem; }

  /* Footer */
  footer .flex { flex-direction: column; gap: 0.25rem; font-size: 0.75rem; }

  /* Settings modal */
  #settings-modal .modal-content { max-width: calc(100vw - 0.5rem); }
  .settings-tab-btn { padding: 0.4rem 0.5rem; font-size: 0.7rem; }

  /* PIN modal */
  #pin-modal .grid-cols-3 { gap: 0.5rem; }
  .pin-btn { height: 3.5rem; font-size: 1.25rem; border-radius: 1rem; }

  /* Semester selector caché, label mobile visible */
  #mobile-semester-label { display: flex !important; }

  /* Scroll toggle button */
  #scroll-toggle-btn { bottom: 1rem; right: 1rem; width: 2.75rem; height: 2.75rem; }

  /* Changelog / legal modals */
  #changelog-modal .modal-content,
  #legal-modal .modal-content { max-height: 85vh; }
  #changelog-modal article { padding: 1rem; }
}

/* --- PETITS TÉLÉPHONES (max-width: 480px) --- */
@media (max-width: 480px) {
  body { font-size: 14px; }

  header .text-2xl { font-size: 1rem !important; }
  header .w-10.h-10 { display: none; }

  #login-screen .glass-card { padding: 1.5rem 1rem; }
  #login-screen .text-3xl { font-size: 1.25rem; }
  #login-screen .w-20.h-20 { width: 3rem; height: 3rem; }

  #user-selection-grid { grid-template-columns: 1fr !important; gap: 0.75rem; }

  #main-card h2 { font-size: 1.1rem; }
  #calc-form .text-4xl { font-size: 1.5rem; }

  .modal-content {
    margin: 0.25rem;
    max-width: calc(100vw - 0.5rem);
    padding: 0.75rem !important;
  }
  .modal-content h2 { font-size: 1.25rem; }
  .modal-content .text-2xl { font-size: 1.25rem; }

  /* Settings tabs : 2 lignes */
  #settings-modal .flex.border-b { flex-wrap: wrap; }
  .settings-tab-btn { font-size: 0.65rem; padding: 0.35rem 0.5rem; }

  /* Charts */
  #chart-subject-selector { max-height: 8rem; }

  /* Footer minimal */
  footer { padding: 0.5rem; }
  footer .flex { font-size: 0.7rem; }

  /* Color picker grid */
  #color-menu .grid-cols-6 { grid-template-columns: repeat(4, 1fr); gap: 0.5rem; }
  .color-dot { width: 1.75rem; height: 1.75rem; }

  /* PIN modal compact */
  .pin-btn { height: 3rem; font-size: 1.1rem; }
  #pin-display { font-size: 2.5rem; }
}

/* --- HAUTEUR D'ÉCRAN RÉDUITE (paysage téléphone) --- */
@media (max-height: 600px) {
  header { height: auto !important; min-height: 2.5rem; }
  header .max-w-7xl { padding: 0.25rem 0.5rem; }
  main { padding-top: 0.5rem; }
  .modal-content { max-height: 95vh; }
  .modal-overlay { padding: 0.25rem; }
  #loading-screen .pulse-logo { width: 3rem; height: 3rem; }
  #loading-screen .w-4.h-4 { width: 0.75rem; height: 0.75rem; }
}

/* --- TRÈS GRANDS ÉCRANS (min-width: 1536px) --- */
@media (min-width: 1536px) {
  main { max-width: 90rem; }
  .glass-card { border-radius: 2.5rem; }
  #main-card { padding: 3rem !important; }
}

/* Optimisations spécifiques pour l'expérience mobile détectée */
.phone-xp .glass-card {
  -webkit-backdrop-filter: none !important;
  backdrop-filter: none !important;
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
}

.phone-xp .subject-card {
  will-change: auto;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

/* Help center cards */
.help-card {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  font-weight: 700;
  color: var(--text-main);
  transition: background 0.15s, color 0.15s, transform 0.15s;
}
.help-card:hover {
  background: var(--bg-card);
  color: var(--primary);
  transform: scale(1.01);
}
.help-card:active { transform: scale(0.98); }

/* Tutorial overlay transitions */
#tuto-tooltip {
  transition: top 0.3s ease, left 0.3s ease;
  max-width: min(320px, calc(100vw - 2rem));
}
#tuto-arrow {
  transition: top 0.3s ease, left 0.3s ease;
}

/* General responsive utilities */
.overflow-x-hidden { overflow-x: hidden; }
img, video, svg { max-width: 100%; height: auto; }

/* Smooth scroll on all devices */
html { scroll-behavior: smooth; }

/* Better tap highlight on mobile */
@media (hover: none) {
  * { -webkit-tap-highlight-color: rgba(99, 102, 241, 0.15); }
}

/* Safe area insets for notched phones */
@supports(padding: max(0px)) {
  header { padding-left: max(0.5rem, env(safe-area-inset-left)); padding-right: max(0.5rem, env(safe-area-inset-right)); }
  main { padding-left: max(0.75rem, env(safe-area-inset-left)); padding-right: max(0.75rem, env(safe-area-inset-right)); }
  footer { padding-bottom: max(0.5rem, env(safe-area-inset-bottom)); }
  .modal-overlay { padding-top: max(0.5rem, env(safe-area-inset-top)); padding-bottom: max(0.5rem, env(safe-area-inset-bottom)); }
}

/* @media prefers-reduced-motion: honour OS-level accessibility setting */
@media (prefers-reduced-motion: reduce) {
  .blob, .pulse-logo { animation: none !important; }
  .animate-entrance { animation: none !important; opacity: 1; transform: none !important; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ====================================================
   MOBILE BOTTOM NAVIGATION BAR (≤639px only)
   Replaces the header nav on small screens with a
   polished fixed bottom bar: Notes | Semestre | Charts
   ==================================================== */

#mobile-nav-bar {
  display: none;
}

@media (max-width: 639px) {
  /* Show & style the bar */
  #mobile-nav-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    min-height: 3.5rem;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: var(--bg-card);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border-top: 1px solid var(--card-border);
    box-shadow: 0 -4px 24px -4px rgba(0, 0, 0, 0.08), 0 -1px 0 var(--card-border);
    align-items: stretch;
  }

  /* Push main content above the fixed bar */
  main {
    padding-bottom: calc(4.25rem + env(safe-area-inset-bottom, 0px)) !important;
  }

  /* Push toasts above the bar */
  #toast-container {
    bottom: calc(4.5rem + env(safe-area-inset-bottom, 0px));
    left: 0.75rem;
    right: 0.75rem;
  }

  /* Hide the header nav (bottom bar takes its role) */
  header nav {
    display: none !important;
  }

  /* Header: single clean row with no wrapping */
  header .max-w-7xl {
    flex-wrap: nowrap !important;
  }

  /* Hide footer (links accessible via settings/help) */
  footer {
    display: none !important;
  }

  /* Suppress old phone-switch-btn completely */
  .phone-switch-btn {
    display: none !important;
  }

  /* ---- Tab buttons (Notes / Charts) ---- */
  .mobile-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--text-muted);
    font-size: 0.58rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 0.5rem 0.25rem;
    transition: color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
  }

  .mobile-nav-item.active {
    color: var(--primary);
  }

  .mobile-nav-item svg {
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .mobile-nav-item.active svg {
    transform: translateY(-2px) scale(1.15);
  }

  /* Small active dot underneath active tab icon */
  .mobile-nav-item.active::after {
    content: "";
    display: block;
    width: 0.25rem;
    height: 0.25rem;
    border-radius: 50%;
    background: var(--primary);
    margin-top: 1px;
  }

  /* ---- Semester selector section ---- */
  .mobile-nav-semester {
    flex: 1.6;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    min-height: 3.5rem;
    padding: 0 0.125rem;
  }

  .mobile-nav-sem-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 100%;
    flex-shrink: 0;
    color: var(--text-muted);
    transition: color 0.15s, background 0.15s;
    -webkit-tap-highlight-color: transparent;
    border-radius: 0.4rem;
  }

  .mobile-nav-sem-arrow:active {
    color: var(--primary);
    background: var(--input-bg);
  }

  .mobile-nav-sem-name {
    flex: 1;
    text-align: center;
    font-size: 0.6rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-main);
    padding: 0 0.125rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 4.5rem;
  }
}

/* Dark theme: stronger shadow for bottom nav */
@media (max-width: 639px) {
  .dark-theme #mobile-nav-bar {
    box-shadow: 0 -4px 24px -4px rgba(0, 0, 0, 0.4), 0 -1px 0 var(--card-border);
  }
}

/* ====== DEV TERMINAL ====== */
#dev-terminal {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40vh;
  min-height: 180px;
  max-height: 92vh;
  background: #0c0e14;
  color: #c9d1d9;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  font-size: 12px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  border-top: 2px solid #58a6ff;
  box-shadow: 0 -8px 32px rgba(0,0,0,0.6);
  transition: opacity 0.25s ease, transform 0.25s ease;
}
#dev-terminal.dev-hidden {
  opacity: 0;
  transform: translateY(100%);
  pointer-events: none;
  visibility: hidden;
}
#dev-terminal.dev-expanded { height: 92vh; }

/* Drag handle */
#dev-drag-handle {
  height: 6px;
  cursor: ns-resize;
  background: transparent;
  position: relative;
  flex-shrink: 0;
}
#dev-drag-handle::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 3px;
  border-radius: 3px;
  background: #30363d;
  transition: background 0.15s;
}
#dev-drag-handle:hover::after { background: #58a6ff; }

.dev-terminal-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: #13161f;
  border-bottom: 1px solid #1c2030;
  flex-shrink: 0;
  flex-wrap: nowrap;
  overflow: hidden;
}
.dev-terminal-title {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #58a6ff;
  font-weight: 700;
  font-size: 12px;
  white-space: nowrap;
  flex-shrink: 0;
}
.dev-badge {
  background: #238636;
  color: #fff;
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 9px;
  font-weight: 600;
}
.dev-sim-indicator {
  background: #da3633;
  color: #fff;
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 9px;
  font-weight: 600;
  animation: devBlink 2s ease-in-out infinite;
}
@keyframes devBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.dev-terminal-tabs {
  display: flex;
  gap: 1px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}
.dev-terminal-tabs::-webkit-scrollbar { display: none; }
.dev-tab {
  padding: 4px 8px;
  border: none;
  background: transparent;
  color: #6e7681;
  font-size: 11px;
  font-family: inherit;
  cursor: pointer;
  border-radius: 5px;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
  display: flex;
  align-items: center;
  gap: 4px;
}
.dev-tab:hover { background: #1c2030; color: #c9d1d9; }
.dev-tab.active { background: #1c2030; color: #58a6ff; font-weight: 600; }
.dev-tab svg { flex-shrink: 0; }

.dev-terminal-actions {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}
.dev-terminal-actions button {
  width: 26px;
  height: 26px;
  border: none;
  background: transparent;
  color: #6e7681;
  cursor: pointer;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}
.dev-terminal-actions button:hover { background: #1c2030; color: #f0f6fc; }

.dev-terminal-body {
  flex: 1;
  overflow: hidden;
  position: relative;
}
.dev-panel {
  display: none;
  height: 100%;
  overflow-y: auto;
  padding: 10px 12px;
  scroll-behavior: smooth;
}
.dev-panel.active { display: block; }
.dev-panel::-webkit-scrollbar { width: 5px; }
.dev-panel::-webkit-scrollbar-track { background: transparent; }
.dev-panel::-webkit-scrollbar-thumb { background: #21262d; border-radius: 5px; }
.dev-panel::-webkit-scrollbar-thumb:hover { background: #30363d; }

/* Cards grid */
.dev-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 8px;
}
.dev-card {
  background: #141720;
  border: 1px solid #1c2030;
  border-radius: 8px;
  padding: 10px 12px;
  transition: border-color 0.15s;
}
.dev-card:hover { border-color: #30363d; }
.dev-card-title {
  color: #58a6ff;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.dev-card-title::before {
  content: '';
  width: 3px;
  height: 12px;
  border-radius: 2px;
  background: #58a6ff;
  flex-shrink: 0;
}
.dev-card-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 3px 0;
  border-bottom: 1px solid #1c203008;
  gap: 12px;
}
.dev-card-key { color: #6e7681; white-space: nowrap; }
.dev-card-val { color: #e6edf3; text-align: right; max-width: 65%; word-break: break-all; font-weight: 500; }
.dev-card-val.good { color: #3fb950; }
.dev-card-val.warn { color: #d29922; }
.dev-card-val.bad { color: #f85149; }

/* Toolbar */
.dev-toolbar {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.dev-search-wrap {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #141720;
  border: 1px solid #1c2030;
  border-radius: 5px;
  padding: 3px 8px;
  flex: 1;
  min-width: 120px;
  max-width: 260px;
  transition: border-color 0.15s;
}
.dev-search-wrap:focus-within { border-color: #58a6ff; }
.dev-search-wrap svg { color: #6e7681; flex-shrink: 0; }
.dev-search-wrap input {
  background: transparent;
  border: none;
  outline: none;
  color: #c9d1d9;
  font-size: 11px;
  font-family: inherit;
  width: 100%;
  padding: 2px 0;
}
.dev-btn {
  padding: 4px 10px;
  border: 1px solid #1c2030;
  background: #141720;
  color: #c9d1d9;
  border-radius: 5px;
  font-size: 10px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.dev-btn:hover { background: #1c2030; border-color: #30363d; }
.dev-btn-accent { border-color: #58a6ff40; color: #58a6ff; }
.dev-btn-accent:hover { background: #58a6ff15; }
.dev-btn-reset {
  width: 100%;
  padding: 8px;
  margin: 10px 0;
  border: 1px dashed #3fb95060;
  background: #3fb95010;
  color: #3fb950;
  border-radius: 6px;
  font-size: 11px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}
.dev-btn-reset:hover { background: #3fb95020; }

.dev-label {
  display: flex;
  align-items: center;
  gap: 3px;
  color: #6e7681;
  font-size: 10px;
  cursor: pointer;
}
.dev-label input { accent-color: #58a6ff; width: 12px; height: 12px; }
.dev-dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.dev-dot-err { background: #f85149; }
.dev-dot-warn { background: #d29922; }
.dev-dot-log { background: #8b949e; }
.dev-count-badge {
  font-size: 9px;
  color: #6e7681;
  margin-left: auto;
}

/* Storage list */
.dev-list { display: flex; flex-direction: column; gap: 3px; }
.dev-storage-item {
  background: #141720;
  border: 1px solid #1c2030;
  border-radius: 5px;
  padding: 7px 10px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.dev-storage-item:hover { background: #1a1e2a; border-color: #30363d; }
.dev-storage-key { color: #58a6ff; font-weight: 600; font-size: 11px; }
.dev-storage-size { color: #6e7681; font-size: 9px; margin-left: 6px; }
.dev-storage-preview {
  color: #6e7681;
  font-size: 10px;
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dev-storage-expanded {
  color: #c9d1d9;
  font-size: 10px;
  margin-top: 5px;
  padding: 6px;
  background: #0c0e14;
  border-radius: 4px;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 200px;
  overflow-y: auto;
  display: none;
  border: 1px solid #1c2030;
}

/* Platform section */
.dev-platform-section { margin-bottom: 4px; }
.dev-section-label {
  color: #6e7681;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 6px;
  margin-top: 10px;
}
.dev-section-label:first-child { margin-top: 0; }
.dev-platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 6px;
}
.dev-platform-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 12px 8px 10px;
  border: 1px solid #1c2030;
  background: #141720;
  color: #c9d1d9;
  border-radius: 8px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
}
.dev-platform-btn:hover { background: #1c2030; border-color: #58a6ff80; transform: translateY(-1px); }
.dev-platform-btn.active-plat { border-color: #58a6ff; background: #58a6ff12; box-shadow: 0 0 12px #58a6ff20; }
.dev-platform-icon { font-size: 22px; }
.dev-platform-name { font-size: 12px; font-weight: 600; }
.dev-platform-detail { font-size: 9px; color: #6e7681; text-align: center; }

.dev-status-box {
  background: #141720;
  border: 1px solid #1c2030;
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 11px;
}
.dev-status-box .dev-card-row { border-bottom: 1px solid #1c2030; }
.dev-status-box .dev-card-row:last-child { border-bottom: none; }

/* Console */
.dev-console-log {
  background: #0c0e14;
  border: 1px solid #1c2030;
  border-radius: 5px;
  padding: 6px;
  height: calc(100% - 36px);
  overflow-y: auto;
  font-size: 11px;
  line-height: 1.5;
}
.dev-log-entry { padding: 1px 5px; border-radius: 2px; display: flex; gap: 6px; }
.dev-log-entry.log-type-log { color: #c9d1d9; }
.dev-log-entry.log-type-warn { color: #d29922; background: #d2992208; }
.dev-log-entry.log-type-error { color: #f85149; background: #f8514908; }
.dev-log-entry .log-time { color: #30363d; white-space: nowrap; flex-shrink: 0; }
.dev-log-entry .log-msg { word-break: break-all; }

/* Status bar */
.dev-statusbar {
  display: flex;
  gap: 16px;
  padding: 2px 12px;
  background: #13161f;
  border-top: 1px solid #1c2030;
  font-size: 10px;
  color: #6e7681;
  flex-shrink: 0;
}
.dev-statusbar span { white-space: nowrap; }

/* ====== DEVICE CHROME SIMULATION ====== */

/* --- iOS Status Bar --- */
.dev-device-ios-statusbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 54px;
  background: var(--bg-body);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 0 24px 6px 24px;
  z-index: 99998;
  font-family: -apple-system, 'SF Pro Display', 'Helvetica Neue', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  border-bottom: 0.5px solid var(--border);
}
.dev-ios-sb-left { flex: 1; display: flex; align-items: center; }
.dev-ios-sb-time { font-size: 15px; font-weight: 700; letter-spacing: 0.3px; }
.dev-ios-sb-notch { flex: 1; display: flex; justify-content: center; }
.dev-ios-dynamic-island {
  width: 126px;
  height: 36px;
  background: #000;
  border-radius: 22px;
  margin-bottom: -4px;
}
.dark-theme .dev-ios-dynamic-island { background: #1a1a1a; box-shadow: 0 0 0 1px rgba(255,255,255,0.08); }
.dev-ios-sb-right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  color: var(--text-main);
}
.dev-ios-battery {
  width: 27px;
  height: 12px;
  border: 1.5px solid var(--text-main);
  border-radius: 3px;
  position: relative;
  opacity: 0.8;
}
.dev-ios-battery::after {
  content: '';
  position: absolute;
  right: -4px;
  top: 2.5px;
  width: 2px;
  height: 5px;
  background: var(--text-main);
  border-radius: 0 1px 1px 0;
  opacity: 0.5;
}
.dev-ios-battery-fill {
  width: 80%;
  height: 100%;
  background: #34c759;
  border-radius: 1.5px;
}

/* iOS Home Indicator */
.dev-device-ios-homebar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 34px;
  background: var(--bg-body);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99998;
  border-top: 0.5px solid var(--border);
}
.dev-ios-home-indicator {
  width: 134px;
  height: 5px;
  background: var(--text-main);
  border-radius: 100px;
  opacity: 0.25;
}

/* Push content when iOS chrome is active */
body.dev-sim-ios, body.dev-sim-ipados {
  padding-top: 54px !important;
  padding-bottom: 34px !important;
}
body.dev-sim-ios header, body.dev-sim-ipados header { top: 54px !important; }

/* --- Android Status Bar --- */
.dev-device-android-statusbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 28px;
  background: var(--bg-body);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  z-index: 99998;
  font-family: 'Roboto', 'Google Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-main);
  border-bottom: 0.5px solid var(--border);
}
.dev-android-sb-left {
  display: flex;
  align-items: center;
  gap: 4px;
}
.dev-android-sb-time { font-size: 12px; font-weight: 500; }
.dev-android-sb-right {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--text-main);
}
.dev-android-battery {
  width: 22px;
  height: 10px;
  border: 1.5px solid var(--text-main);
  border-radius: 2px;
  position: relative;
  opacity: 0.7;
}
.dev-android-battery::after {
  content: '';
  position: absolute;
  right: -3px;
  top: 1.5px;
  width: 2px;
  height: 5px;
  background: var(--text-main);
  border-radius: 0 1px 1px 0;
  opacity: 0.5;
}
.dev-android-battery-fill {
  width: 75%;
  height: 100%;
  background: var(--text-main);
  border-radius: 1px;
  opacity: 0.6;
}

/* Android Navigation Bar */
.dev-device-android-navbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 20px;
  background: var(--bg-body);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99998;
  border-top: 0.5px solid var(--border);
}
.dev-android-gesture-bar {
  width: 96px;
  height: 4px;
  background: var(--text-main);
  border-radius: 100px;
  opacity: 0.3;
}

/* Push content when Android chrome is active */
body.dev-sim-android {
  padding-top: 28px !important;
  padding-bottom: 20px !important;
}
body.dev-sim-android header { top: 28px !important; }

/* Device chrome is always above modals but below dev terminal */
.dev-device-statusbar, .dev-device-homebar, .dev-device-navbar {
  pointer-events: none;
}

/* No device chrome resources until simulation is active */
#dev-ios-statusbar, #dev-ios-homebar, #dev-android-statusbar, #dev-android-navbar {
  will-change: auto;
}