/* ============================================
   المعلم الرفيق - Main Stylesheet (Fixed)
   Includes proper screen isolation
   ============================================ */

:root {
    --sibawayh-dark: #1E3A8A;
    --sibawayh-light: #3B82F6;
    --farahidi-dark: #047857;
    --farahidi-light: #10B981;
    --bg-cream: #FFF8E7;
    --accent-gold: #F59E0B;
    --error-red: #F87171;
    --success-green: #34D399;
    --primary-text: #1F2937;
    --secondary-text: #6B7280;
    --border-color: #E5E7EB;
    --white: #FFFFFF;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    --text-xs: 0.85rem;
    --text-sm: 1rem;
    --text-base: 1.1rem;
    --text-lg: 1.3rem;
    --text-xl: 1.55rem;
    --text-2xl: 1.9rem;
    --text-3xl: 2.35rem;
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Cairo', 'Tajawal', sans-serif;
    background: var(--bg-cream);
    color: var(--primary-text);
    line-height: 1.9;
    font-size: 18px;
    direction: rtl;
    overflow: hidden; /* Prevent body scroll when screens are fixed */
}

/* Screens - fixed positioning to prevent overlap */
.screen {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow-y: auto;
    background: var(--bg-cream);
    z-index: 10;
    padding: var(--spacing-lg);
}
.screen-active {
    display: flex;
    flex-direction: column;
    z-index: 20;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    white-space: nowrap;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}
.btn-primary { background: var(--sibawayh-light); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--sibawayh-dark); transform: translateY(-2px); }
.btn-secondary { background: var(--border-color); color: var(--primary-text); }
.btn-secondary:hover:not(:disabled) { background: #D1D5DB; }
.btn-danger { background: var(--error-red); color: white; }
.btn-mission { background: var(--farahidi-light); color: white; width: 100%; }
.btn-mission:hover:not(:disabled) { background: var(--farahidi-dark); }
.btn-icon { padding: var(--spacing-sm); border-radius: 50%; background: transparent; }
.btn-icon:hover { background: var(--border-color); }
.btn-lg { padding: var(--spacing-lg) var(--spacing-2xl); font-size: var(--text-lg); }
.btn-sm { padding: var(--spacing-sm) var(--spacing-md); font-size: var(--text-sm); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* Welcome Screen */
#welcomeScreen { justify-content: center; align-items: center; background: linear-gradient(135deg, var(--bg-cream) 0%, #FEEBC8 100%); text-align: center; }
.welcome-content { max-width: 500px; }
.logo-placeholder { font-size: 3rem; font-weight: 800; background: linear-gradient(135deg, var(--sibawayh-light), var(--farahidi-light)); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: var(--spacing-md); }

.app-logo {
    width: 140px;
    height: 140px;
    border-radius: 24px;
    object-fit: cover;
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    animation: slideDown 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.welcome-subtitle { color: var(--secondary-text); margin-bottom: var(--spacing-sm); }
.welcome-title { font-size: var(--text-3xl); margin-bottom: var(--spacing-md); }
.welcome-description { font-size: var(--text-lg); color: var(--secondary-text); margin-bottom: var(--spacing-2xl); }

/* Avatar Selection */
.avatar-selection-content { max-width: 800px; margin: 0 auto; text-align: center; }

.page-logo {
    width: 100px;
    height: 100px;
    border-radius: 20px;
    object-fit: cover;
    margin: 0 auto var(--spacing-xl);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    display: block;
    animation: slideDown 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.avatar-cards-container { display: flex; gap: var(--spacing-2xl); justify-content: center; flex-wrap: wrap; margin-top: var(--spacing-2xl); }
.avatar-card { 
    position: relative;
    background: linear-gradient(145deg, #ffffff 0%, #eef5ff 46%, #f8fffb 100%);
    border: 2px solid rgba(255, 255, 255, 0.9); 
    border-radius: var(--radius-xl); 
    padding: calc(var(--spacing-xl) + 0.25rem) var(--spacing-xl) var(--spacing-xl); 
    width: 280px; 
    cursor: pointer; 
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    isolation: isolate;
}
.avatar-card:hover { 
    transform: translateY(-10px) scale(1.03);
    box-shadow: 0 22px 45px rgba(17, 24, 39, 0.2);
}
.avatar-card[data-avatar="sibawayh"]:hover { 
    border-color: var(--sibawayh-light);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.2);
}
.avatar-card[data-avatar="al-farahidi"]:hover { 
    border-color: var(--farahidi-light);
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.2);
}

.avatar-image {
    width: 190px;
    height: 190px;
    border-radius: 999px;
    object-fit: cover;
    margin-bottom: var(--spacing-lg);
    border: 6px solid rgba(255, 255, 255, 0.95);
    box-shadow: 0 14px 30px rgba(17, 24, 39, 0.22);
    transition: all var(--transition-normal);
}

.avatar-card:hover .avatar-image {
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
    transform: scale(1.04);
}

.avatar-card h3 { 
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-xl);
}

.avatar-specialty {
    font-weight: 600;
    color: var(--sibawayh-light);
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-base);
}

.avatar-card[data-avatar="al-farahidi"] .avatar-specialty {
    color: var(--farahidi-light);
}

.avatar-description {
    font-size: var(--text-sm);
    line-height: 1.8;
}

.avatar-role-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--text-xs);
    font-weight: 700;
    color: #072c47;
    background: linear-gradient(120deg, #fef3c7, #fde68a);
    border: 1px solid #f59e0b;
    border-radius: 999px;
    padding: 0.2rem 0.8rem;
    box-shadow: 0 8px 14px rgba(245, 158, 11, 0.24);
}

/* Hub Screen */
#hubScreen {
    background: linear-gradient(135deg, rgba(17, 54, 84, 0.85) 0%, rgba(10, 31, 51, 0.85) 100%), url('../assets/images/background-ocean.jpeg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hub-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}
.hub-header { 
    background: linear-gradient(135deg, rgba(6, 25, 42, 0.8) 0%, rgba(7, 34, 53, 0.86) 100%);
    border-radius: var(--radius-xl); 
    padding: var(--spacing-lg) var(--spacing-xl); 
    margin-bottom: var(--spacing-xl); 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    flex-wrap: wrap; 
    gap: var(--spacing-lg); 
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(125, 211, 252, 0.28);
    backdrop-filter: blur(10px);
    position: relative;
}

.hub-header::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    background: linear-gradient(90deg, rgba(34, 211, 238, 0.22), rgba(251, 191, 36, 0.22));
    mix-blend-mode: screen;
}

/* Hub Branding */
.hub-branding {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 200px;
}

.hub-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.hub-title {
    font-family: 'Cairo', sans-serif;
    font-size: var(--text-lg);
    font-weight: 700;
    background: linear-gradient(135deg, var(--sibawayh-light), var(--farahidi-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent !important;
}

/* Avatar Display in Header */
.avatar-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 140px;
}

.header-avatar-img {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--sibawayh-light);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
}

.avatar-display:hover .header-avatar-img {
    transform: scale(1.08);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.5);
}

.header-avatar-name {
    font-family: 'Cairo', sans-serif;
    font-size: var(--text-base);
    font-weight: 600;
    color: #e2e8f0;
}
.hub-header label,
.hub-header span {
    color: #e2e8f0;
}
.stats-container { display: flex; gap: var(--spacing-xl); flex-wrap: wrap; }
.energy-bar-wrapper, .keys-display { min-width: 180px; }
.keys-display {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 64px;
}
.keys-display label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    line-height: 1.2;
    margin-bottom: 0.25rem;
}
.energy-bar { width: 100%; height: 24px; background: var(--border-color); border-radius: var(--radius-md); overflow: hidden; margin: var(--spacing-xs) 0; }
.energy-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--sibawayh-light), var(--farahidi-light)); transition: width var(--transition-slow); }
.keys-grid { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; align-items: center; justify-content: flex-start; margin: var(--spacing-xs) 0; margin-left: 0.75rem; margin-inline-start: 0.75rem; min-height: 1.75rem; }
.key-icon { font-size: 1.35rem; line-height: 1; display: inline-flex; align-items: center; justify-content: center; }
.missions-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--spacing-lg); }
.mission-card { background: var(--white); border-radius: var(--radius-xl); padding: var(--spacing-lg); display: flex; justify-content: space-between; align-items: center; gap: var(--spacing-lg); box-shadow: var(--shadow-md); transition: transform var(--transition-fast); }
.mission-card:hover { transform: translateY(-4px); }
.mission-card-content { flex: 1; }
.mission-card h3 { margin-bottom: var(--spacing-sm); }
.mission-scenario { background: var(--bg-cream); padding: var(--spacing-md); border-radius: var(--radius-md); font-size: var(--text-sm); margin: var(--spacing-md) 0; }
.mission-progress { display: flex; justify-content: space-between; font-size: var(--text-sm); color: var(--secondary-text); }
.progress-mini { flex: 1; height: 4px; background: var(--border-color); border-radius: var(--radius-md); margin-right: var(--spacing-md); overflow: hidden; }
.progress-mini::after { content: ''; display: block; height: 100%; width: 0%; background: linear-gradient(90deg, var(--sibawayh-light), var(--farahidi-light)); transition: width var(--transition-normal); }
.mission-card.completed .progress-mini::after { width: 100%; }
.innovation-lab { border: 2px dashed var(--accent-gold); }
.lock-indicator { background: var(--error-red); color: white; padding: var(--spacing-sm) var(--spacing-md); border-radius: var(--radius-md); font-size: var(--text-sm); display: inline-block; }
.hidden { display: none !important; }

/* Mission Screen */
#missionScreen {
    display: block;
    background: radial-gradient(circle at 15% 0%, rgba(45, 212, 191, 0.18) 0%, transparent 35%),
        radial-gradient(circle at 88% 5%, rgba(59, 130, 246, 0.2) 0%, transparent 38%),
        linear-gradient(170deg, #0f1f33 0%, #132942 45%, #1c3756 100%);
    overflow: hidden;
    padding: 1rem;
}

.mission-container {
    background: linear-gradient(180deg, rgba(246, 251, 255, 0.96) 0%, rgba(237, 245, 253, 0.96) 100%);
    border-radius: var(--radius-xl);
    padding: 1rem 1rem 0.85rem;
    box-shadow: 0 24px 60px rgba(2, 8, 23, 0.38);
    border: 1px solid rgba(148, 163, 184, 0.25);
    max-width: 1150px;
    margin: 0 auto;
    width: min(1150px, calc(100vw - 2rem));
    height: calc(100vh - 2rem);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.mission-header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid rgba(59, 130, 246, 0.12);
}

.mission-info h2 {
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-xs);
}

.energy-mini {
    background: rgba(16, 185, 129, 0.12);
    color: var(--farahidi-dark);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 999px;
    font-weight: 700;
    min-width: 80px;
    text-align: center;
}

.mission-content {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    min-height: 0;
    flex: 1;
    overflow: hidden;
}

.scenario-box {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08) 0%, rgba(16, 185, 129, 0.08) 100%);
    padding: 0.7rem 0.9rem;
    border-right: 4px solid var(--sibawayh-light);
    border-radius: var(--radius-lg);
    margin-bottom: 0;
}

.question-box {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 0.8rem;
    background: linear-gradient(145deg, #ffffff 0%, #f2f8ff 100%);
    border: 1px solid rgba(30, 64, 175, 0.16);
    border-radius: var(--radius-lg);
    padding: 0.85rem;
    box-shadow: 0 18px 35px rgba(30, 41, 59, 0.16);
    min-height: 0;
    flex: 1;
}

.question-main {
    min-width: 0;
}

.question-text {
    font-size: clamp(1.15rem, 1.8vw, 1.45rem);
    font-weight: 700;
    margin-bottom: 0.65rem;
    line-height: 1.75;
}

.question-content {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.option {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--spacing-md);
    min-height: 64px;
    padding: 0.8rem 0.9rem;
    border: 2px solid rgba(30, 64, 175, 0.2);
    border-radius: var(--radius-md);
    cursor: pointer;
    background: linear-gradient(135deg, #ffffff 0%, #edf5ff 100%);
    font-size: var(--text-lg);
    font-weight: 700;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    -webkit-tap-highlight-color: transparent;
}

.option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.option:hover {
    border-color: rgba(37, 99, 235, 0.8);
    box-shadow: 0 14px 24px rgba(59, 130, 246, 0.2);
    transform: translateY(-2px);
}

.option.selected {
    border-color: #1d4ed8;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.22) 0%, rgba(16, 185, 129, 0.16) 100%);
    box-shadow: 0 14px 26px rgba(37, 99, 235, 0.26);
}

.option::before {
    content: '';
    width: 1.1rem;
    height: 1.1rem;
    border-radius: 50%;
    border: 2px solid rgba(37, 99, 235, 0.45);
    flex: 0 0 auto;
}

.option.selected::before {
    background: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.22);
}

.fill-input {
    width: 100%;
    padding: 0.8rem 0.9rem;
    border: 2px solid rgba(17, 24, 39, 0.12);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.fill-input:focus {
    outline: none;
    border-color: var(--sibawayh-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.feedback-box {
    padding: 0.7rem 0.85rem;
    border-radius: var(--radius-lg);
    border-right: 4px solid var(--error-red);
    background: rgba(248, 113, 113, 0.12);
    box-shadow: 0 10px 20px rgba(248, 113, 113, 0.12);
}

.feedback-box.success {
    border-color: var(--success-green);
    background: rgba(52, 211, 153, 0.12);
    color: var(--farahidi-dark);
    box-shadow: 0 10px 20px rgba(52, 211, 153, 0.12);
}

.mission-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.65rem;
    margin-top: 0.15rem;
}

.option.pop {
    animation: optionPop 0.2s ease-out;
}

@keyframes optionPop {
    0% { transform: scale(1); }
    55% { transform: scale(1.045); }
    100% { transform: scale(1); }
}

.avatar-helper {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 64, 175, 0.88) 100%);
    border-radius: calc(var(--radius-xl) - 0.2rem);
    padding: 0.85rem;
    box-shadow: 0 16px 30px rgba(15, 23, 42, 0.4);
    height: fit-content;
    text-align: center;
    border: 1px solid rgba(191, 219, 254, 0.34);
}

.companion-bubble {
    margin-top: 0.6rem;
    background: rgba(255, 255, 255, 0.12);
    color: #e0f2fe;
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--text-sm);
    line-height: 1.8;
}

.companion-portrait {
    display: block;
    margin: 0 auto;
    object-fit: cover;
    border-radius: 1rem;
    border: 3px solid rgba(191, 219, 254, 0.8);
    box-shadow: 0 12px 30px rgba(2, 6, 23, 0.45);
}

.companion-portrait-lg {
    width: 138px;
    height: 162px;
}

.companion-portrait-sm {
    width: 84px;
    height: 100px;
}

.avatar-helper.reaction-happy .companion-portrait,
.avatar-helper.reaction-excited .companion-portrait {
    box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.22), 0 0 24px rgba(34, 211, 238, 0.45), 0 12px 30px rgba(2, 6, 23, 0.45);
    transform: translateY(-2px) scale(1.03);
}

.avatar-helper.reaction-thoughtful .companion-portrait,
.avatar-helper.reaction-encouraging .companion-portrait {
    box-shadow: 0 0 0 3px rgba(253, 224, 71, 0.16), 0 0 18px rgba(253, 224, 71, 0.25), 0 12px 30px rgba(2, 6, 23, 0.45);
}

.victory-drawer {
    position: absolute;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    z-index: 25;
    transform: translateY(120%);
    transition: transform 280ms ease, opacity 280ms ease;
    opacity: 0;
    pointer-events: none;
}

.victory-drawer.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.victory-drawer-content {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 0.9rem 1rem;
    border-radius: 1rem;
    background: linear-gradient(145deg, rgba(12, 24, 44, 0.96), rgba(18, 39, 69, 0.98));
    border: 1px solid rgba(34, 211, 238, 0.24);
    box-shadow: 0 18px 40px rgba(2, 8, 23, 0.45);
}

.victory-celebration {
    font-size: 2rem;
    animation: victoryBounce 700ms ease-in-out infinite alternate;
}

@keyframes victoryBounce {
    from { transform: translateY(0) scale(1); }
    to { transform: translateY(-4px) scale(1.04); }
}

.victory-text-wrap {
    flex: 1;
    min-width: 0;
    text-align: center;
}

.victory-title {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-weight: 800;
    color: #fef08a;
    margin-bottom: 0.25rem;
}

.victory-message {
    color: #dbeafe;
    font-size: 1rem;
    line-height: 1.7;
}

.victory-continue {
    min-width: 130px;
    background: linear-gradient(145deg, #f59e0b, #f97316) !important;
    color: #0f172a !important;
    box-shadow: 0 10px 24px rgba(245, 158, 11, 0.3);
}

.victory-confetti {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(circle at 20% 30%, rgba(34, 211, 238, 0.9) 0 2px, transparent 3px),
        radial-gradient(circle at 30% 70%, rgba(253, 224, 71, 0.9) 0 2px, transparent 3px),
        radial-gradient(circle at 75% 35%, rgba(244, 114, 182, 0.9) 0 2px, transparent 3px),
        radial-gradient(circle at 82% 65%, rgba(52, 211, 153, 0.9) 0 2px, transparent 3px);
    opacity: 0;
}

.victory-drawer.visible .victory-confetti {
    animation: confettiBurst 700ms ease-out 1;
}

@keyframes confettiBurst {
    0% { opacity: 0; transform: scale(0.3); }
    35% { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(1.35); }
}

.sort-category {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 1px solid rgba(17, 24, 39, 0.08);
    box-shadow: 0 8px 18px rgba(17, 24, 39, 0.08);
}

.sort-category h4 {
    margin-bottom: var(--spacing-md);
    font-size: var(--text-base);
}

.sort-list {
    min-height: 120px;
    border: 1px dashed rgba(59, 130, 246, 0.4);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    background: rgba(59, 130, 246, 0.04);
}

.sort-item {
    background: #ffffff;
    border-radius: 999px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid rgba(17, 24, 39, 0.12);
    box-shadow: 0 4px 10px rgba(17, 24, 39, 0.08);
    cursor: grab;
}

.sortable-ghost {
    opacity: 0.6;
    background: rgba(59, 130, 246, 0.1);
}

.sortable-drag {
    cursor: grabbing;
}

/* Popups */
.popup { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 5000; display: none; justify-content: center; align-items: center; }
.popup:not(.hidden) { display: flex; }
.popup-overlay { position: absolute; width: 100%; height: 100%; background: rgba(0,0,0,0.5); }
.popup-content { position: relative; background: var(--white); border-radius: var(--radius-xl); padding: var(--spacing-xl); max-width: 500px; width: 90%; z-index: 5001; animation: contentSlideUp var(--transition-normal); }
.popup-close { position: absolute; top: var(--spacing-md); left: var(--spacing-md); width: 32px; height: 32px; border-radius: 50%; background: var(--border-color); font-size: 1.2rem; }
.success-popup { text-align: center; }
.celebration-animation { font-size: 3rem; margin-bottom: var(--spacing-lg); }
.earned-key { font-size: 3rem; margin: var(--spacing-lg) 0; }

/* Innovation Lab */
.lab-container { max-width: 800px; margin: 0 auto; width: 100%; }
.lab-header { background: var(--white); border-radius: var(--radius-xl); padding: var(--spacing-xl); margin-bottom: var(--spacing-xl); display: flex; align-items: center; gap: var(--spacing-lg); }
.lab-section { background: var(--white); border-radius: var(--radius-xl); padding: var(--spacing-xl); margin-bottom: var(--spacing-lg); box-shadow: var(--shadow-md); }
.lab-textarea { width: 100%; min-height: 120px; padding: var(--spacing-md); border: 2px solid var(--border-color); border-radius: var(--radius-md); font-family: inherit; }
.grammar-feedback { margin-top: var(--spacing-md); padding: var(--spacing-md); border-radius: var(--radius-md); background: rgba(16,185,129,0.1); border-right: 3px solid var(--farahidi-light); }
.creative-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: var(--spacing-md); }
.creative-card { background: var(--bg-cream); padding: var(--spacing-md); border-radius: var(--radius-md); font-size: var(--text-sm); }

/* Profile */
.profile-container { max-width: 600px; margin: 0 auto; width: 100%; }
.profile-header { background: var(--white); border-radius: var(--radius-xl); padding: var(--spacing-xl); margin-bottom: var(--spacing-xl); display: flex; align-items: center; gap: var(--spacing-lg); }
.profile-section { background: var(--white); border-radius: var(--radius-xl); padding: var(--spacing-xl); margin-bottom: var(--spacing-lg); box-shadow: var(--shadow-md); }
.profile-section p { display: flex; justify-content: space-between; margin-bottom: var(--spacing-md); }
.profile-section button { width: 100%; margin-top: var(--spacing-md); }

/* Responsive */
@media (max-width: 768px) {
    #missionScreen { padding: 0.5rem; }
    .mission-container {
        width: calc(100vw - 1rem);
        height: calc(100vh - 1rem);
        padding: 0.75rem;
    }
    .question-box { grid-template-columns: 1fr; }
    .avatar-helper { order: -1; }
    .stats-container { flex-direction: column; }
    .mission-buttons { grid-template-columns: 1fr; }
    .mission-buttons .btn { width: 100%; min-height: 60px; }
    .island-label-card { bottom: -3.6rem; width: 180px; }
    .path-caption { width: calc(100% - 2rem); text-align: center; }

    .world-map-container {
        overflow: auto;
        cursor: grab;
        scrollbar-width: none;
    }

    .world-map-container::-webkit-scrollbar {
        display: none;
    }

    .world-map-container.is-dragging {
        cursor: grabbing;
    }

    .islands-container {
        min-width: 920px;
        min-height: 720px;
    }

    .option {
        min-height: 60px;
        width: 100%;
        font-size: 1.125rem;
    }

    .question-text,
    .scenario-box,
    .companion-bubble,
    .btn {
        font-size: 1.125rem;
    }

    .victory-drawer {
        left: 0.5rem;
        right: 0.5rem;
        bottom: 0.5rem;
    }

    .victory-drawer-content {
        padding: 0.8rem;
        gap: 0.75rem;
    }

    .victory-continue {
        min-width: 110px;
    }
}

/* Animations */
@keyframes contentSlideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}


/* Mission Map (Islands) */
.world-map-container {
    position: relative;
    flex: 1;
    width: 100%;
    max-width: 1100px;
    height: clamp(420px, 65vh, 760px);
    margin: 0 auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    background: #0b1a2a;
    touch-action: pan-x pan-y;
}

.progress-path-layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.progress-path-layer .path-segment {
    fill: none;
    stroke: rgba(253, 224, 71, 0.75);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 1 14;
    filter: drop-shadow(0 0 10px rgba(253, 224, 71, 0.28));
}

.progress-path-layer .path-segment.dimmed {
    opacity: 0.12;
}

.progress-path-layer .path-segment.active {
    opacity: 1;
    stroke: rgba(34, 211, 238, 0.95);
    filter: drop-shadow(0 0 14px rgba(34, 211, 238, 0.5));
}

.progress-path-layer .unlock-burst {
    fill: none;
    stroke: rgba(253, 224, 71, 0.95);
    stroke-width: 6;
    filter: drop-shadow(0 0 14px rgba(253, 224, 71, 0.75));
    animation: unlockBurst 1.05s ease-out forwards;
    transform-origin: center;
}

@keyframes unlockBurst {
    0% {
        opacity: 0.95;
        transform: scale(0.25);
        stroke-width: 7;
    }
    55% {
        opacity: 0.9;
        transform: scale(1.9);
        stroke-width: 4;
    }
    100% {
        opacity: 0;
        transform: scale(2.6);
        stroke-width: 2;
    }
}

.path-caption {
    position: absolute;
    top: 1rem;
    right: 50%;
    transform: translateX(50%);
    z-index: 5;
    color: #fef9c3;
    background: rgba(2, 6, 23, 0.56);
    border: 1px solid rgba(253, 224, 71, 0.5);
    border-radius: 999px;
    padding: 0.3rem 1rem;
    font-size: var(--text-xs);
    font-weight: 700;
}

.ocean-background {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(180deg, rgba(17, 54, 84, 0.85) 0%, rgba(10, 31, 51, 0.9) 55%, rgba(5, 26, 42, 0.95) 100%), url('../assets/images/background-ocean.jpeg');
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.ocean-waves {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path d="M0,64 Q150,40 300,64 T600,64 T900,64 T1200,64 L1200,120 L0,120 Z" fill="%23082540" opacity="0.3"/><path d="M0,80 Q150,60 300,80 T600,80 T900,80 T1200,80 L1200,120 L0,120 Z" fill="%230a3a52" opacity="0.2"/></svg>') repeat-x;
    background-size: 600px 120px;
    animation: wave-move 15s linear infinite;
    z-index: 1;
}

@keyframes wave-move {
    0% { transform: translateX(0); }
    100% { transform: translateX(-600px); }
}

.islands-container {
    position: relative;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.islands-container::before { display: none; }

.island-active {
    animation: activeNodePulse 1.8s ease-in-out infinite;
}

@keyframes activeNodePulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.45), 0 18px 44px rgba(0, 0, 0, 0.6);
    }
    50% {
        box-shadow: 0 0 0 14px rgba(34, 211, 238, 0), 0 24px 52px rgba(251, 191, 36, 0.35);
    }
}

.island-card {
    position: absolute;
    cursor: pointer;
    border-radius: 16px;
    overflow: visible;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    width: clamp(110px, 14vw, 150px);
    height: clamp(110px, 14vw, 150px);
}

.island-visual {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    overflow: hidden;
}

.island-card:hover {
    transform: translateY(-15px) scale(1.08);
    box-shadow: 0 25px 60px rgba(255, 215, 0, 0.4);
}

.island-card:active {
    transform: translateY(-10px) scale(1.04);
}

.island-card.island-locked {
    opacity: 0.5;
    filter: grayscale(0.8) brightness(0.8);
}

.island-card.island-locked .island-lock-overlay,
.island-card.island-locked .island-lock-icon {
    display: flex;
}

.island-card.island-completed::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(52, 211, 153, 0.25) 0%, transparent 70%);
    pointer-events: none;
}

.island-image {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.6s ease;
}

.island-card:hover .island-image {
    transform: scale(1.12);
}

.island-card.island-locked .island-image {
    transform: none;
}

.island-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(2, 6, 23, 0.86), rgba(2, 6, 23, 0.36));
    z-index: 1;
    transition: background 0.3s ease;
}

.island-card.island-locked .island-overlay {
    background: linear-gradient(to top, rgba(2, 6, 23, 0.88), rgba(2, 6, 23, 0.42));
}

.island-card:hover .island-overlay {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.98), rgba(0, 0, 0, 0.7), transparent);
}

.island-title {
    font-family: 'Cairo', sans-serif;
    font-size: var(--text-sm);
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: #0f172a;
    line-height: 1.1;
}

.island-card.island-locked .island-title,
.island-card.island-locked .island-keys {
    color: #e2e8f0;
}

.island-keys {
    font-size: var(--text-xs);
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.3rem;
    width: 100%;
    min-height: 1.9rem;
    margin-top: 0.45rem;
    padding-top: 0.4rem;
    border-top: 1px solid rgba(148, 163, 184, 0.45);
    color: #1e293b;
}

.key-glyph {
    display: inline-flex;
    align-items: baseline;
}

.island-label-card {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: -4.2rem;
    width: min(95%, 220px);
    padding: 1rem 0.7rem 0.55rem;
    border-radius: 0.85rem;
    text-align: center;
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.96), rgba(241, 245, 249, 0.96));
    border: 1px solid rgba(59, 130, 246, 0.25);
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.36);
    z-index: 2;
}

.island-card.island-locked .island-label-card {
    background: linear-gradient(160deg, rgba(15, 23, 42, 0.95), rgba(30, 41, 59, 0.95));
    border-color: rgba(148, 163, 184, 0.35);
}

.island-order {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 999px;
    background: #fbbf24;
    color: #111827;
    font-size: var(--text-xs);
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #f59e0b;
    z-index: 3;
}

.island-lock-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    background: rgba(2, 6, 23, 0.34);
    backdrop-filter: blur(2px);
}

.island-lock-overlay.hidden {
    display: none;
}

.island-lock-icon {
    font-size: 2.1rem;
    line-height: 1;
    color: #fde68a;
    text-shadow: 0 0 18px rgba(253, 224, 71, 0.95), 0 0 28px rgba(59, 130, 246, 0.3);
    animation: lockPulse 1.4s ease-in-out infinite;
}

@keyframes lockPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

.island-lock-breaking .island-lock-icon {
    animation: lockBreak 1.1s ease forwards;
}

@keyframes lockBreak {
    0% { transform: scale(1) rotate(0deg); opacity: 1; }
    35% { transform: scale(1.15) rotate(-8deg); opacity: 1; }
    65% { transform: scale(1.05) rotate(8deg); opacity: 0.9; }
    100% { transform: scale(0.5) rotate(18deg); opacity: 0; }
}

.path-unlock-flash .path-segment.active {
    animation: pathGlow 1.2s ease-out;
}

@keyframes pathGlow {
    0% { filter: brightness(0.9) drop-shadow(0 0 0 rgba(251, 191, 36, 0)); }
    40% { filter: brightness(1.15) drop-shadow(0 0 18px rgba(251, 191, 36, 0.85)); }
    100% { filter: brightness(1) drop-shadow(0 0 0 rgba(251, 191, 36, 0)); }
}

#hintBtn,
#submitBtn,
#nextBtn {
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45), 0 10px 18px rgba(15, 23, 42, 0.24);
    transform: translateY(0);
}

#hintBtn {
    background: linear-gradient(145deg, #334155, #1e293b);
    color: #f8fafc;
}

#submitBtn,
#nextBtn {
    background: linear-gradient(145deg, #2563eb, #14b8a6);
    color: #f8fafc;
}

#hintBtn:hover,
#submitBtn:hover,
#nextBtn:hover {
    transform: translateY(-2px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 14px 24px rgba(15, 23, 42, 0.32);
}

.island-keys.locked {
    color: #fbbf24;
}

.completion-mark {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(52, 211, 153, 0.95);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: bold;
    z-index: 3;
    animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 4px 12px rgba(52, 211, 153, 0.4);
}

@keyframes scaleIn {
    from {
        transform: scale(0) rotate(-180deg);
        opacity: 0;
    }
    to {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

.lab-locked-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    border-radius: 12px;
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.island-card:hover .lab-locked-overlay {
    background: rgba(0, 0, 0, 0.6);
}

.lab-lock-icon {
    font-size: 3.5rem;
    color: #fbbf24;
    text-shadow: 0 0 25px rgba(251, 191, 36, 0.9);
    animation: pulse 2s ease-in-out infinite;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

/* Island positions in sea */
#island-idhafa { top: 15%; left: 15%; }
#island-diptote { top: 10%; right: 15%; }
#island-participles { bottom: 25%; left: 12%; }
#island-vocative { bottom: 25%; right: 12%; }
#island-lab { top: 50%; left: 50%; transform: translate(-50%, -50%); }