/* ============================================================
   EDUNEX ACADEMY - GLOBAL STYLESHEET
   Contains: Design Tokens, Reset, Navbar, Footer, Utilities
   ============================================================ */

/* ---- Design Tokens / CSS Variables ---- */
:root {
    /* Primary Colors */
    --primary:       #1a3c8f;   /* Deep Blue */
    --primary-dark:  #0f2460;
    --primary-light: #2856c8;
    --secondary:     #00c8ff;   /* Cyan Accent */
    --secondary-dark:#0099cc;
    --accent:        #f5a623;   /* Gold Accent */

    /* Status Colors */
    --success:       #22c55e;
    --danger:        #ef4444;
    --warning:       #f59e0b;

    /* Neutrals */
    --white:         #ffffff;
    --off-white:     #f8faff;
    --light-gray:    #e8edf8;
    --mid-gray:      #94a3b8;
    --dark-gray:     #475569;
    --text-dark:     #0f172a;
    --text-body:     #334155;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1a3c8f 0%, #2856c8 100%);
    --gradient-hero:    linear-gradient(135deg, #0f1f5c 0%, #1a3c8f 50%, #2456a0 100%);
    --gradient-accent:  linear-gradient(135deg, #f5a623 0%, #f7c461 100%);
    --gradient-cyan:    linear-gradient(135deg, #00c8ff 0%, #0099cc 100%);

    /* Shadows */
    --shadow-sm:  0 2px 8px rgba(26,60,143,0.08);
    --shadow-md:  0 8px 24px rgba(26,60,143,0.14);
    --shadow-lg:  0 20px 60px rgba(26,60,143,0.18);
    --shadow-card:0 4px 20px rgba(0,0,0,0.08);

    /* Fonts */
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body:    'Inter', sans-serif;

    /* Spacing */
    --section-py: 90px;
    --container-max: 1200px;

    /* Border Radius */
    --radius-sm:  8px;
    --radius-md:  16px;
    --radius-lg:  24px;
    --radius-xl:  32px;
    --radius-full:9999px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    --transition-slow: all 0.6s cubic-bezier(0.4,0,0.2,1);
}

/* ---- CSS Reset ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-body);
    background: var(--off-white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* ---- Layout Utilities ---- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--section-py) 0;
}

/* ---- Section Header ---- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(26,60,143,0.08);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 14px;
    border: 1px solid rgba(26,60,143,0.15);
}

.section-badge.light {
    background: rgba(255,255,255,0.15);
    color: var(--white);
    border-color: rgba(255,255,255,0.25);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.25;
    margin-bottom: 16px;
}

.section-title.light {
    color: var(--white);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--dark-gray);
    max-width: 600px;
    margin: 0 auto;
}

.section-subtitle.light {
    color: rgba(255,255,255,0.78);
}

.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-body);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    transform: translate(-50%,-50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px; height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(26,60,143,0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(26,60,143,0.45);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.5);
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.12);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn-white {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
    font-weight: 700;
}

.btn-white:hover {
    background: var(--off-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline-white:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 9px 22px;
    font-size: 0.88rem;
}

.btn-lg {
    padding: 16px 38px;
    font-size: 1.05rem;
}

.btn-secondary {
    background: var(--gradient-cyan);
    color: var(--white);
    border-color: var(--secondary);
    box-shadow: 0 4px 20px rgba(0,200,255,0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,200,255,0.45);
}

/* ---- Navbar ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 25, 80, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.nav-logo {
    width: 42px;
    height: 42px;
    object-fit: contain;
    border-radius: 10px;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.5px;
}

.brand-sub {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--white);
    background: rgba(255,255,255,0.1);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 4px; left: 50%;
    transform: translateX(-50%);
    width: 18px; height: 2px;
    background: var(--secondary);
    border-radius: var(--radius-full);
}

.btn-login {
    background: var(--gradient-accent);
    color: var(--text-dark) !important;
    font-weight: 700;
    padding: 8px 18px;
    border-radius: var(--radius-full);
}

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(245,166,35,0.4);
    background: var(--gradient-accent) !important;
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 5px;
}

.dropdown-toggle .fa-chevron-down {
    font-size: 0.7rem;
    transition: var(--transition);
}

.dropdown:hover .fa-chevron-down {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 220px;
    background: rgba(10, 20, 70, 0.97);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    padding: 10px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    top: calc(100% + 4px);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    font-size: 0.88rem;
    color: rgba(255,255,255,0.8);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.dropdown-item:hover {
    background: rgba(255,255,255,0.1);
    color: var(--white);
}

.dropdown-item i {
    color: var(--secondary);
    width: 16px;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* ---- Announcement Ticker ---- */
.ticker-bar {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 12px 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    margin-top: 80px;
}

.ticker-label {
    flex-shrink: 0;
    background: var(--accent);
    color: var(--text-dark);
    padding: 4px 18px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-right: 20px;
    margin-left: 24px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 6px;
}

.ticker-wrapper {
    flex: 1;
    overflow: hidden;
}

.ticker-content {
    display: inline-flex;
    white-space: nowrap;
    animation: ticker-scroll 30s linear infinite;
    font-size: 0.88rem;
    font-weight: 400;
}

@keyframes ticker-scroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ---- Footer ---- */
.footer {
    background: var(--text-dark);
    color: rgba(255,255,255,0.75);
}

.footer-top {
    padding: 70px 0 50px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 48px;
}

.footer-logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.footer-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 10px;
    background: var(--primary);
    padding: 4px;
}

.footer-tagline {
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-link {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.88rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-heading {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 22px;
    position: relative;
    padding-bottom: 10px;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 32px; height: 2px;
    background: var(--secondary);
    border-radius: var(--radius-full);
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.65);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.footer-links a i {
    font-size: 0.65rem;
    color: var(--secondary);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 4px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.88rem;
}

.footer-contact i {
    color: var(--secondary);
    margin-top: 3px;
    flex-shrink: 0;
    font-size: 0.9rem;
}

.footer-contact a {
    color: rgba(255,255,255,0.65);
}

.footer-contact a:hover {
    color: var(--secondary);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
}

.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-bottom p {
    font-size: 0.85rem;
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.45);
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--secondary);
}

/* ---- Back to Top ---- */
.back-to-top {
    position: fixed;
    bottom: 28px; right: 28px;
    width: 46px; height: 46px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 999;
    border: none;
    cursor: pointer;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ---- CTA Banner ---- */
.cta-banner {
    background: var(--gradient-primary);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%; right: -10%;
    width: 400px; height: 400px;
    background: rgba(255,255,255,0.04);
    border-radius: 50%;
}

.cta-banner .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
}

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 8px;
}

.cta-content p {
    color: rgba(255,255,255,0.8);
    font-size: 1rem;
}

.cta-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ---- Form Styles (Global) ---- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--text-dark);
    margin-bottom: 7px;
}

.form-group label .required {
    color: var(--danger);
    margin-left: 3px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 0.92rem;
    color: var(--text-dark);
    background: var(--white);
    border: 1.5px solid var(--light-gray);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,60,143,0.1);
}

.form-control::placeholder {
    color: var(--mid-gray);
}

.form-control.error {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239,68,68,0.1);
}

.form-error {
    font-size: 0.8rem;
    color: var(--danger);
    margin-top: 5px;
    display: none;
}

.form-error.visible {
    display: block;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

select.form-control {
    cursor: pointer;
}

/* ---- Page Hero (for inner pages) ---- */
.page-hero {
    background: var(--gradient-hero);
    padding: 130px 0 70px;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.04)" stroke-width="1"/><circle cx="50" cy="50" r="25" fill="none" stroke="rgba(255,255,255,0.04)" stroke-width="1"/></svg>') center/50% no-repeat;
}

.page-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.page-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
}

.page-hero p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.8);
    max-width: 600px;
    margin: 0 auto 24px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 0.88rem;
    color: rgba(255,255,255,0.55);
}

.breadcrumb a {
    color: rgba(255,255,255,0.7);
}

.breadcrumb a:hover {
    color: var(--secondary);
}

.breadcrumb i {
    font-size: 0.65rem;
}

/* ---- Scroll Animations ---- */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.animated {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ---- Responsive Breakpoints ---- */
@media (max-width: 1024px) {
    :root { --section-py: 70px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 768px) {
    :root { --section-py: 56px; }

    /* Navbar Mobile */
    .nav-links {
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(10, 20, 70, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 8px;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }

    .nav-links.open {
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        font-size: 1.1rem;
        padding: 12px 24px;
    }

    .hamburger { display: flex; z-index: 1000; }

    .hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    .dropdown-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        background: rgba(255,255,255,0.05);
        box-shadow: none;
        border: none;
        margin-top: 4px;
    }

    .cta-banner .container { flex-direction: column; text-align: center; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .footer-bottom .container { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .btn { padding: 11px 22px; font-size: 0.88rem; }
    .btn-lg { padding: 13px 28px; }
    .cta-actions { flex-direction: column; }
}