/* 
   Professional Mobile Optimizations & Consistency Fixes 
   Ria Academy 2025
*/

/* --- Enhanced Mobile Navigation & Glassmorphism --- */
.mobile-nav-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(0, 0, 0, 0.4) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    z-index: var(--z-modal) !important;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s cubic-bezier(0.33, 1, 0.68, 1), visibility 0.4s !important;
    display: flex !important;
    align-items: stretch !important;
    justify-content: flex-end !important;
    overflow: hidden !important;
    pointer-events: none !important;
}

.mobile-nav-overlay.active {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
}

.mobile-nav {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    left: auto !important;
    width: min(320px, 85vw) !important;
    max-width: 380px !important;
    max-height: 100dvh !important;
    /* Deep Glassmorphism Background */
    background: rgba(15, 23, 42, 0.85) !important;
    backdrop-filter: blur(20px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
    border-left: 1px solid rgba(255, 255, 255, 0.08) !important;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5) !important;
    padding: 24px !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 0 !important;
    /* Managed by children spacing */
    transform: translateX(110%) !important;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1) !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
    margin: 0 !important;
}

.mobile-nav-overlay.active .mobile-nav {
    transform: translateX(0) !important;
}

html[dir="rtl"] .mobile-nav-overlay {
    justify-content: flex-start !important;
}

html[dir="rtl"] .mobile-nav {
    right: auto !important;
    left: 0 !important;
    border-left: none !important;
    border-right: 1px solid rgba(255, 255, 255, 0.08) !important;
    transform: translateX(-110%) !important;
    box-shadow: 10px 0 40px rgba(0, 0, 0, 0.5) !important;
}

html[dir="rtl"] .mobile-nav-overlay.active .mobile-nav {
    transform: translateX(0) !important;
}

/* Header inside Nav */
.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 0px;
    min-height: 48px;
}

.mobile-nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-nav-logo span {
    font-weight: 800;
    font-size: 1.4rem;
    color: white;
    letter-spacing: -0.02em;
    font-family: 'Tajawal', sans-serif;
}

.mobile-nav-logo i {
    color: var(--primary-color, #00bcd4);
    font-size: 1.6rem;
    filter: drop-shadow(0 0 10px rgba(0, 188, 212, 0.4));
}

.mobile-nav-close {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    width: 44px !important;
    height: 44px !important;
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.mobile-nav-close:hover {
    background: rgba(0, 188, 212, 0.15);
    color: var(--primary-color, #00bcd4);
    border-color: rgba(0, 188, 212, 0.3);
    transform: rotate(90deg);
}

.mobile-nav-divider {
    display: none;
    /* Removed in favor of spacing */
}

/* Nav Links Container & Staggered Animation */
.mobile-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: auto;
}

.mobile-links a {
    display: flex !important;
    align-items: center !important;
    padding: 14px 18px !important;
    border-radius: 16px !important;
    color: rgba(255, 255, 255, 0.75) !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
    background: transparent !important;
    border: 1px solid transparent !important;
    font-size: 1.05rem !important;
    opacity: 0;
    transform: translateY(20px);
}

/* Staggered Animation Logic */
.mobile-nav-overlay.active .mobile-links a {
    animation: slideUpFade 0.5s forwards ease-out;
    animation-delay: calc(0.1s + var(--i) * 0.08s);
}

@keyframes slideUpFade {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-links a i {
    width: 28px;
    margin-right: 14px;
    text-align: center;
    color: var(--primary-color, #00bcd4);
    font-size: 1.15em;
    opacity: 0.8;
    transition: opacity 0.3s, transform 0.3s;
}

/* Hover & Active States */
.mobile-links a:hover,
.mobile-links a:active {
    background: rgba(255, 255, 255, 0.05) !important;
    color: white !important;
    transform: translateX(6px) !important;
    /* Override animation transform for interaction */
}

.mobile-links a.active {
    background: linear-gradient(90deg, rgba(0, 188, 212, 0.15), transparent) !important;
    border-left: 3px solid var(--primary-color, #00bcd4) !important;
    border-radius: 4px 16px 16px 4px !important;
    color: white !important;
    font-weight: 700 !important;
}

.mobile-links a.active i {
    opacity: 1;
    text-shadow: 0 0 15px rgba(0, 188, 212, 0.6);
}

html[dir="rtl"] .mobile-links a i {
    margin-right: 0;
    margin-left: 14px;
}

html[dir="rtl"] .mobile-links a.active {
    background: linear-gradient(270deg, rgba(0, 188, 212, 0.15), transparent) !important;
    border-left: none !important;
    border-right: 3px solid var(--primary-color, #00bcd4) !important;
    border-radius: 16px 4px 4px 16px !important;
}


/* Footer Section inside Nav */
.mobile-nav-footer {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0;
    transform: translateY(20px);
}

.mobile-nav-overlay.active .mobile-nav-footer {
    animation: slideUpFade 0.6s forwards ease-out 0.5s;
}

.mobile-nav-phone {
    justify-content: center;
    background: rgba(255, 255, 255, 0.03) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    border-radius: 12px !important;
    padding: 12px !important;
    font-size: 0.95rem !important;
    color: rgba(255, 255, 255, 0.9) !important;
    text-decoration: none !important;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.mobile-nav-phone i {
    color: var(--primary-color);
}

/* Language Selector in Menu */
.mobile-language-dropdown {
    width: 100%;
}

.mobile-language-dropdown .dropdown-toggle {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
}

.mobile-language-dropdown .dropdown-toggle-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mobile-language-dropdown .dropdown-toggle img {
    width: 22px;
    border-radius: 3px;
}

/* Auth Buttons */
.mobile-auth-buttons {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.mobile-auth-buttons .btn {
    border-radius: 12px;
    font-weight: 700;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.mobile-auth-buttons .btn.login {
    background: rgba(0, 188, 212, 0.15) !important;
    color: var(--primary-color) !important;
    border: 1px solid rgba(0, 188, 212, 0.3) !important;
}

.mobile-auth-buttons .btn.login:hover {
    background: var(--primary-color) !important;
    color: black !important;
    box-shadow: 0 4px 15px rgba(0, 188, 212, 0.4) !important;
}

/* Light Theme Adaptations */
body.light-theme .mobile-nav {
    background: rgba(255, 255, 255, 0.9) !important;
    border-left: 1px solid rgba(0, 0, 0, 0.05) !important;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1) !important;
}

body.light-theme .mobile-nav-logo span {
    color: #1e293b !important;
}

body.light-theme .mobile-nav-close {
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.06);
    color: #64748b;
}

body.light-theme .mobile-links a {
    color: #475569 !important;
}

body.light-theme .mobile-links a:hover {
    background: rgba(0, 0, 0, 0.04) !important;
    color: #0f172a !important;
}

/* --- Uniform Mobile Menu Layout (Cross-Page Consistency) --- */
.mobile-nav-overlay .mobile-nav {
    width: min(320px, 88vw) !important;
    padding: 20px 18px !important;
    gap: 18px !important;
}

.mobile-nav-overlay .mobile-nav .mobile-nav-header {
    margin-bottom: 18px !important;
    padding-bottom: 0 !important;
    min-height: 44px !important;
}

.mobile-nav-overlay .mobile-nav .mobile-nav-logo span {
    font-size: 1.2rem !important;
}

.mobile-nav-overlay .mobile-nav .mobile-nav-close {
    width: 40px !important;
    height: 40px !important;
    font-size: 1rem !important;
}

/* Fallback for pages that place links directly under .mobile-nav */
.mobile-nav-overlay .mobile-nav > a,
.mobile-nav-overlay .mobile-nav .mobile-links a {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    padding: 12px 14px !important;
    border-radius: 12px !important;
    font-size: 0.98rem !important;
    line-height: 1.3 !important;
    width: 100% !important;
    box-sizing: border-box !important;
}

.mobile-nav-overlay .mobile-nav > a i,
.mobile-nav-overlay .mobile-nav .mobile-links a i {
    width: 24px !important;
    text-align: center !important;
    font-size: 1.05rem !important;
}

.mobile-nav-overlay .mobile-nav .mobile-nav-footer {
    margin-top: 18px !important;
    padding-top: 16px !important;
    gap: 14px !important;
}

.mobile-nav-overlay .mobile-nav .mobile-language-dropdown .dropdown-toggle {
    padding: 10px 14px !important;
    font-size: 0.95rem !important;
}

.mobile-nav-overlay .mobile-nav .mobile-auth-buttons .btn {
    min-height: 44px !important;
    font-size: 0.95rem !important;
    border-radius: 12px !important;
}

@media (max-width: 480px) {
    .mobile-nav-overlay .mobile-nav {
        width: 100% !important;
        padding: 18px 16px !important;
        border-radius: 0 !important;
    }

    .mobile-nav-overlay .mobile-nav > a,
    .mobile-nav-overlay .mobile-nav .mobile-links a {
        font-size: 0.92rem !important;
        padding: 10px 12px !important;
    }

    .mobile-nav-overlay .mobile-nav .mobile-nav-logo span {
        font-size: 1.1rem !important;
    }
}

body.light-theme .mobile-links a.active {
    background: linear-gradient(90deg, rgba(0, 188, 212, 0.1), transparent) !important;
    color: #008ba3 !important;
}

body.light-theme .mobile-nav-footer {
    border-top-color: rgba(0, 0, 0, 0.08);
}

body.light-theme .mobile-nav-phone {
    background: white !important;
    border-color: rgba(0, 0, 0, 0.08) !important;
    color: #334155 !important;
}

body.light-theme .mobile-nav a[href^="tel:"] {
    background: white !important;
    border-color: rgba(0, 0, 0, 0.08) !important;
    color: #334155 !important;
}

body.light-theme .mobile-language-dropdown .dropdown-toggle {
    background: white;
    border-color: rgba(0, 0, 0, 0.08);
    color: #334155;
}

/* --- Hero Section & Global Mobile Typography (Preserved from original) --- */
@media (max-width: 768px) {
    :root {
        --mobile-padding: 20px;
    }

    body {
        font-size: 16px;
        -webkit-text-size-adjust: 100%;
        overflow-x: hidden !important;
    }

    section,
    .container {
        padding-left: var(--mobile-padding) !important;
        padding-right: var(--mobile-padding) !important;
    }

    h1 {
        font-size: 2.2rem !important;
        line-height: 1.2 !important;
    }

    h2 {
        font-size: 1.8rem !important;
        line-height: 1.3 !important;
    }

    h3 {
        font-size: 1.5rem !important;
        line-height: 1.3 !important;
    }

    footer {
        padding: 40px 0 20px !important;
    }

    footer .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        padding: 0 20px;
    }

    .footer-section {
        width: 100%;
    }

    .footer-section h4 {
        justify-content: center;
        font-size: 1.25rem;
        margin-bottom: 20px;
    }

    .footer-section h4::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-section ul {
        align-items: center;
    }

    .footer-section ul li a {
        padding: 10px;
        display: block;
    }
}

@media (max-width: 991px) {
    .hero {
        flex-direction: column !important;
        padding: 100px 20px 60px !important;
        gap: 40px !important;
        text-align: center;
        width: 100%;
        box-sizing: border-box;
    }

    .hero-content {
        text-align: center !important;
        padding-right: 0 !important;
        width: 100% !important;
        order: 1 !important;
    }

    .hero-video-container {
        width: 100% !important;
        max-width: 500px !important;
        margin: 0 auto !important;
        order: 2 !important;
    }

    .hero-content h1 {
        font-size: clamp(2rem, 5vw, 2.5rem) !important;
    }

    .hero-content p {
        font-size: 1rem !important;
        padding: 0 10px;
    }

    .hero-actions {
        justify-content: center;
        flex-direction: column;
        gap: 16px;
        align-items: center;
        width: 100%;
    }

    .hero-cta-button {
        width: 100%;
        max-width: 300px;
        min-height: 54px;
    }
}

@media (max-width: 650px) {

    .free-courses-grid,
    .courses-grid-pro {
        grid-template-columns: 1fr !important;
        gap: 24px !important;
        padding: 0 16px !important;
        width: 100%;
        box-sizing: border-box;
    }

    .free-card,
    .course-card {
        margin: 0 !important;
        width: 100% !important;
    }
}

/* Hamburger Touch Target */
.hamburger-menu {
    width: 48px !important;
    height: 48px !important;
    justify-content: center;
    align-items: flex-end;
    padding: 12px;
    box-sizing: border-box;
}

/* ===========================================
   KPI Cards Mobile Alignment Fix
   =========================================== */
@media (max-width: 768px) {
    .courses-kpis {
        display: flex !important;
        flex-direction: column !important;
        gap: 12px !important;
        width: 100% !important;
        padding: 0 4px !important;
    }

    .kpi-card {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: flex-start !important;
        gap: 16px !important;
        padding: 16px 20px !important;
        background: rgba(255, 255, 255, 0.04) !important;
        border: 1px solid rgba(255, 255, 255, 0.08) !important;
        border-radius: 16px !important;
        width: 100% !important;
        box-sizing: border-box !important;
        text-align: left !important;
    }

    html[dir="rtl"] .kpi-card {
        text-align: right !important;
        flex-direction: row-reverse !important;
    }

    .kpi-icon {
        flex-shrink: 0 !important;
        width: 48px !important;
        height: 48px !important;
        min-width: 48px !important;
        border-radius: 12px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        background: linear-gradient(135deg, rgba(0, 188, 212, 0.2), rgba(0, 212, 188, 0.1)) !important;
        color: var(--primary-color, #00bcd4) !important;
        font-size: 1.25rem !important;
    }

    .kpi-card>div:last-child {
        display: flex !important;
        flex-direction: column !important;
        gap: 4px !important;
        flex: 1 !important;
        min-width: 0 !important;
    }

    .kpi-label {
        color: rgba(255, 255, 255, 0.6) !important;
        font-size: 0.8rem !important;
        font-weight: 500 !important;
        line-height: 1.3 !important;
    }

    .kpi-value {
        color: #fff !important;
        font-weight: 700 !important;
        font-size: 0.95rem !important;
        line-height: 1.3 !important;
    }
}

@media (max-width: 480px) {
    .kpi-card {
        padding: 14px 16px !important;
        gap: 14px !important;
    }

    .kpi-icon {
        width: 44px !important;
        height: 44px !important;
        min-width: 44px !important;
        font-size: 1.1rem !important;
    }

    .kpi-label {
        font-size: 0.75rem !important;
    }

    .kpi-value {
        font-size: 0.9rem !important;
    }
}