/* ============================================ */
/*                  ROOT VARIABLES                */
/* ============================================ */
:root {
    /* Color Palette - Bright & Futuristic */
    --color-primary: #6a0dad;      /* Deep Purple */
    --color-secondary: #00f7ff;    /* Electric Cyan */
    --color-accent: #ff00c1;      /* Neon Magenta */
    --color-primary-darker: #4d0080;
    --color-accent-darker: #cc009a;

    /* Backgrounds */
    --color-bg-dark: #0d051c;
    --color-bg-light: #f5f6fa;
    --color-bg-glass: rgba(20, 10, 40, 0.7);

    /* Text */
    --color-text-light: #ffffff;
    --color-text-dark: #333333;
    --color-text-dark-headings: #222222;
    --color-text-muted: #b0b8c4;

    /* Fonts */
    --font-heading: 'Inter', 'Helvetica Neue', sans-serif;
    --font-body: 'IBM Plex Sans', 'Arial', sans-serif;

    /* Spacing & Sizing */
    --header-height: 80px;
    --border-radius: 12px;
    --section-padding: 80px 0;

    /* Shadows & Effects */
    --shadow-volumetric: 4px 4px 12px rgba(0, 0, 0, 0.5), -4px -4px 12px rgba(255, 255, 255, 0.05);
    --shadow-lift: 0 10px 30px rgba(0, 0, 0, 0.3);
    --transition-fast: 0.3s ease;
    --transition-smooth: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ============================================ */
/*                  GLOBAL STYLES                 */
/* ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--color-bg-light);
    color: var(--color-text-dark);
    font-family: var(--font-body);
    line-height: 1.7;
    overflow-x: hidden;
}

/* ============================================ */
/*                  TYPOGRAPHY                  */
/* ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--color-text-dark-headings);
    text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
p { margin-bottom: 1rem; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition-fast); }
a:hover { color: var(--color-accent); }
img { max-width: 100%; height: auto; display: block; }

/* ============================================ */
/*              UTILITY & LAYOUT                */
/* ============================================ */
.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

.section-padding { padding: var(--section-padding); }
.section-dark { background-color: var(--color-bg-dark); color: var(--color-text-light); }
.section-dark h1, .section-dark h2, .section-dark h3 { color: var(--color-text-light); text-shadow: 1px 1px 3px rgba(0,0,0,0.5); }
.section-dark p { color: var(--color-text-muted); }
.section-title { text-align: center; margin-bottom: 1rem; }
.section-subtitle { text-align: center; max-width: 700px; margin: 0 auto 3rem auto; font-size: 1.1rem; }

/* Simple Flexbox Grid System */
.columns { display: flex; flex-wrap: wrap; margin: -1rem; }
.column { padding: 1rem; flex-grow: 1; flex-basis: 0; }
.column.is-one-third { flex: none; width: 33.333%; }
.column.is-two-thirds { flex: none; width: 66.666%; }
.column.is-offset-one-sixth { margin-left: 16.6667%; }


/* ============================================ */
/*                  HEADER / NAV                */
/* ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 0 20px;
    height: var(--header-height);
    background: var(--color-bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
}
.header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { font-family: var(--font-heading); font-weight: 800; font-size: 1.8rem; color: var(--color-text-light); }
.main-nav ul { display: flex; list-style: none; gap: 2rem; }
.main-nav a { color: var(--color-text-muted); font-weight: 500; font-size: 1rem; padding: 0.5rem 0; position: relative; }
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-secondary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-fast);
}
.main-nav a:hover, .main-nav a:focus { color: var(--color-text-light); }
.main-nav a:hover::after, .main-nav a:focus::after { transform: scaleX(1); transform-origin: left; }

/* Burger Menu */
.burger-menu { display: none; background: transparent; border: none; cursor: pointer; z-index: 1001; }
.burger-line { display: block; width: 28px; height: 3px; background-color: var(--color-text-light); margin: 6px 0; border-radius: 3px; transition: var(--transition-smooth); }

/* Active State for Burger */
.burger-menu.is-active .burger-line:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.burger-menu.is-active .burger-line:nth-child(2) { opacity: 0; }
.burger-menu.is-active .burger-line:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }


/* ============================================ */
/*                      HERO                      */
/* ============================================ */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-text-light);
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    padding: 0 20px;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(13, 5, 28, 0.8) 0%, rgba(13, 5, 28, 0.4) 100%);
    z-index: 1;
}
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-content h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7); }
.hero-content p { font-size: clamp(1rem, 2.5vw, 1.25rem); color: var(--color-text-muted); max-width: 600px; margin: 1.5rem auto 2.5rem; }


/* ============================================ */
/*               GLOBAL BUTTONS                 */
/* ============================================ */
.futuristic-button, .futuristic-button-sm {
    display: inline-block;
    font-family: var(--font-heading);
    font-weight: 700;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    color: var(--color-text-light);
    background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: all var(--transition-fast);
}
.futuristic-button { padding: 1rem 2.5rem; font-size: 1rem; }
.futuristic-button-sm { padding: 0.75rem 1.5rem; font-size: 0.9rem; }

.futuristic-button:hover, .futuristic-button-sm:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 0, 193, 0.4);
    background: linear-gradient(45deg, var(--color-primary-darker), var(--color-accent-darker));
}

/* ============================================ */
/*                  STATS WIDGETS                 */
/* ============================================ */
.stat-widget {
    background: var(--color-bg-light);
    border: 1px solid #e0e0e0;
    padding: 2rem;
    text-align: center;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    height: 100%;
}
.stat-value {
    font-size: 4rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--color-primary);
    display: inline-block;
}
.stat-unit {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    display: inline-block;
    vertical-align: top;
    margin-left: 0.25rem;
}
.stat-label { font-size: 1.2rem; font-weight: 600; margin-bottom: 0.5rem; }
.stat-description { color: #666; font-size: 0.9rem; }


/* ============================================ */
/*                 CARDS (PROJECTS)               */
/* ============================================ */
.card {
    background: var(--color-bg-glass);
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-volumetric);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
}
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lift); }
.card-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
}
.card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-smooth); }
.card:hover .card-image img { transform: scale(1.05); }
.card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    text-align: center;
}
.card-content h3 { margin-top: 0; }
.card-content p { flex-grow: 1; }

/* ============================================ */
/*                  ACCORDION                   */
/* ============================================ */
.accordion {
    background: var(--color-bg-light);
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
}
.accordion-header {
    width: 100%;
    background: transparent;
    border: none;
    padding: 1.5rem;
    text-align: left;
    font-size: 1.2rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-text-dark);
}
.accordion-icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform var(--transition-fast);
}
.accordion.active .accordion-icon { transform: rotate(45deg); color: var(--color-primary); }
.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out, padding 0.5s ease-out;
}
.accordion-content p { padding: 0 1.5rem; margin-bottom: 0; }
.accordion.active .accordion-content {
    max-height: 300px;
    padding-bottom: 1.5rem;
}


/* ============================================ */
/*              EXTERNAL RESOURCES              */
/* ============================================ */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}
.resource-item {
    background: var(--color-bg-glass);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: var(--transition-fast);
}
.resource-item:hover { background: rgba(255,255,255,0.1); transform: scale(1.03); }
.resource-icon img { filter: invert(90%) sepia(100%) saturate(1000%) hue-rotate(180deg); }
.resource-text h3 { margin-bottom: 0.25rem; color: var(--color-text-light); }
.resource-text p { margin-bottom: 0; font-size: 0.9rem; color: var(--color-text-muted); }


/* ============================================ */
/*                   EVENTS                     */
/* ============================================ */
.toggle-switch-container { display: flex; justify-content: center; margin-bottom: 3rem; }
.toggle-switch { position: relative; display: inline-block; width: 220px; height: 50px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: #e9e9e9;
    border-radius: 25px;
    transition: var(--transition-fast);
}
.slider:before {
    position: absolute;
    content: "";
    height: 42px;
    width: 102px;
    left: 4px;
    bottom: 4px;
    background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
    border-radius: 21px;
    transition: var(--transition-fast);
}
input:checked + .slider:before { transform: translateX(110px); }
.label-text {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: space-around;
    align-items: center;
    color: var(--color-text-dark);
    font-weight: 600;
    pointer-events: none;
    z-index: 1;
}
.label-text::before, .label-text::after { content: attr(data-on); color: var(--color-text-light); }
.label-text::after { content: attr(data-off); color: var(--color-text-dark); }
input:checked + .slider .label-text::before { color: var(--color-text-dark); }
input:checked + .slider .label-text::after { color: var(--color-text-light); }

.event-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: #fff;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0,0,0,0.07);
    margin-bottom: 1.5rem;
}
.event-date {
    flex-shrink: 0;
    text-align: center;
    background: var(--color-primary);
    color: var(--color-text-light);
    border-radius: 8px;
    padding: 0.5rem 1rem;
}
.event-date .month { font-size: 0.8rem; font-weight: 600; display: block; }
.event-date .day { font-size: 1.8rem; font-weight: 800; display: block; line-height: 1; }
.event-details { flex-grow: 1; }
.event-details h3 { font-size: 1.25rem; margin-bottom: 0.25rem; }
.event-details p { margin-bottom: 0; color: #555; }
.event-item .futuristic-button-sm { margin-left: auto; flex-shrink: 0; }


/* ============================================ */
/*                 CONTACT FORM                 */
/* ============================================ */
.contact-form .form-group {
    position: relative;
    margin-bottom: 2.5rem;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    background: transparent;
    border: none;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--color-text-light);
    font-size: 1rem;
    font-family: var(--font-body);
    transition: border-color var(--transition-fast);
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
}
.contact-form label {
    position: absolute;
    top: 1rem;
    left: 0;
    color: var(--color-text-muted);
    pointer-events: none;
    transition: var(--transition-fast);
}
.contact-form input:focus + label,
.contact-form input:not(:placeholder-shown) + label,
.contact-form textarea:focus + label,
.contact-form textarea:not(:placeholder-shown) + label {
    top: -1rem;
    left: 0;
    font-size: 0.85rem;
    color: var(--color-secondary);
}
/* hide placeholder when label is not floated */
.contact-form input:placeholder-shown + label { visibility: hidden; }
.contact-form textarea { resize: vertical; }
.contact-form button { width: 100%; margin-top: 1rem; }

/* ============================================ */
/*                    FOOTER                    */
/* ============================================ */
.footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-muted);
    padding: 60px 0 20px 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}
.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}
.footer-col p { font-size: 0.9rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.75rem; }
.footer-col a { color: var(--color-text-muted); font-size: 0.9rem; }
.footer-col a:hover { color: var(--color-secondary); }
.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-bottom p { font-size: 0.85rem; margin: 0; }

/* ============================================ */
/*             SCROLL ANIMATIONS                */
/* ============================================ */
.reveal-on-scroll {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.reveal-on-scroll[data-anim="fade-up"] { transform: translateY(50px); }
.reveal-on-scroll[data-anim="fade-down"] { transform: translateY(-50px); }
.reveal-on-scroll[data-anim="zoom-in"] { transform: scale(0.9); }

.reveal-on-scroll.is-visible {
    opacity: 1;
    transform: none;
}

/* ============================================ */
/*         PAGE-SPECIFIC STYLES                 */
/* ============================================ */

/* Success Page */
body.success-page {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
}
.success-container { padding: 2rem; }
.success-container h1 { font-size: 3rem; color: var(--color-secondary); }
.success-container p { font-size: 1.2rem; color: var(--color-text-muted); }
.success-container .futuristic-button { margin-top: 2rem; }

/* Legal Pages (Privacy, Terms) */
body.legal-page .header { background: var(--color-bg-dark); }
.legal-content {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 60px;
}
.legal-content h1 { margin-bottom: 2rem; }
.legal-content h2 { margin-top: 2.5rem; border-bottom: 2px solid var(--color-primary); padding-bottom: 0.5rem; }


/* ============================================ */
/*              RESPONSIVE DESIGN               */
/* ============================================ */
@media (max-width: 992px) {
    .column.is-one-third, .column.is-two-thirds { width: 50%; }
    .column.is-offset-one-sixth { margin-left: 0; }
    .contact-form-wrapper .column.is-two-thirds { width: 100%; }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }

    /* Make columns stack */
    .column,
    .column.is-one-third,
    .column.is-two-thirds {
        width: 100%;
        flex: none;
    }

    /* Mobile Nav */
    .main-nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background: var(--color-bg-dark);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        display: flex;
        transform: translateX(100%);
        transition: transform var(--transition-smooth);
    }
    .main-nav.is-active { transform: translateX(0); }
    .main-nav ul { flex-direction: column; text-align: center; }
    .main-nav a { font-size: 1.5rem; }
    .burger-menu { display: block; }

    /* Hero Section Adjustments */
    .hero-section { min-height: 80vh; }

    /* Events Section */
    .event-item { flex-direction: column; align-items: flex-start; }
    .event-item .futuristic-button-sm { margin-left: 0; margin-top: 1rem; }
    
    /* Footer */
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
}