/* =========================
   LIGHT MODE
========================= */

:root {

    --bg: #dfe4eb;
    --card-bg: #f2f4f7;

    --text: #172033;
    --text-muted: #5d697a;

    --navbar-bg: #0a1736;
    --footer-bg: #0a1736;

    --border: #d1d9e6;

    --primary: #2563eb;
    --primary-hover: #1d4ed8;

    --shadow: 0 8px 25px rgba(0,0,0,.08);
}

/* =========================
   DARK MODE
========================= */

[data-theme="dark"] {

    --bg: #08162e;
    --card-bg: #1f2b42;

    --text: #f1f5f9;
    --text-muted: #94a3b8;

    --navbar-bg: #06112b;
    --footer-bg: #000814;

    --border: #334155;

    --primary: #3b82f6;
    --primary-hover: #60a5fa;

    --shadow: 0 8px 25px rgba(0,0,0,.35);
}

/* =========================
   GENERAL
========================= */

html,
body {
    min-height: 100%;
}

body {

    background: var(--bg);
    color: var(--text);

    display: flex;
    flex-direction: column;

    transition: .25s ease;
}

main {
    flex: 1;
}

/* =========================
   NAVBAR
========================= */

.navbar-hs {

    background: var(--navbar-bg);
}

.navbar-brand {

    font-weight: 700;
    letter-spacing: 2px;
}

.nav-link {

    color: #fff !important;
}

.nav-link:hover {

    opacity: .8;
}

/* =========================
   HOMEPAGE HERO
========================= */

.hero-section {
    min-height: 650px;

    background:
        linear-gradient(
            rgba(0,0,0,.35),
            rgba(0,0,0,.35)
        ),
        url('../img/hero.png');

    background-size: cover;
    background-position: 85% center;
    background-repeat: no-repeat;

    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 550px;
    padding-left: 30px;
}

.hero-title {
    color: #fff;
    text-shadow: 0 2px 10px rgba(0,0,0,.5);
}

.hero-subtitle {
    color: rgba(255,255,255,.95);
    text-shadow: 0 2px 10px rgba(0,0,0,.5);
}
@media (max-width: 768px) {

    .hero-section {
        min-height: 650px;
    }

    .hero-content {
        padding-left: 20px;
        padding-right: 20px;
    }

    .hero-title {
        font-size: 3rem;
        line-height: 1.1;
    }
}
/* =========================
   CONTENT
========================= */

.content-section {

    background: var(--bg);
}

/* =========================
   CARDS
========================= */

.card-hs {

    background: var(--card-bg);

    border: 1px solid var(--border);

    border-radius: 16px;

    box-shadow: var(--shadow);

    transition: .2s;
}

.card-hs:hover {

    transform: translateY(-3px);
}

.card-hs .card-body {

    color: var(--text);
}

.text-muted-custom {

    color: var(--text-muted);
}

/* =========================
   BUTTONS
========================= */

.btn-primary {

    background: var(--primary);

    border-color: var(--primary);
}

.btn-primary:hover {

    background: var(--primary-hover);

    border-color: var(--primary-hover);
}

/* =========================
   LOGIN / REGISTER
========================= */

.auth-fullscreen {

    min-height: 700px;

    background:
        linear-gradient(
            rgba(0,0,0,.20),
            rgba(0,0,0,.20)
        ),
        url('/assets/img/hero.jpg');

    background-size: cover;

    background-position: center center;

    background-repeat: no-repeat;

    display: flex;

    justify-content: center;

    align-items: center;

    padding: 80px 20px;
}

.auth-card {

    width: 100%;

    max-width: 420px;

    padding: 30px;

    border-radius: 20px;

    background: rgba(6,17,43,.35);

    backdrop-filter: blur(20px);

    -webkit-backdrop-filter: blur(20px);

    color: white;

    border: 1px solid rgba(255,255,255,.18);

    box-shadow:
        0 10px 30px rgba(0,0,0,.20);
}

.auth-card h1 {

    color: white;

    font-size: 2rem;

    font-weight: 700;

    margin-bottom: 25px;

    text-align: center;
}

.auth-card label {

    color: rgba(255,255,255,.95);

    font-weight: 500;
}

.auth-card .form-text {

    color: rgba(255,255,255,.9);
}

.auth-card .form-control {

    background: rgba(255,255,255,.88);

    border: none;

    border-radius: 10px;

    padding: 12px 15px;
}

.auth-card .form-control:focus {

    background: rgba(255,255,255,.96);

    box-shadow:
        0 0 0 .2rem rgba(37,99,235,.25);
}

.google-btn {

    display: flex;

    width: 100%;

    min-height: 48px;

    align-items: center;

    justify-content: center;

    gap: 12px;

    padding: 10px 16px;

    background: #ffffff;

    border: 1px solid #dadce0;

    border-radius: 6px;

    color: #3c4043;

    font-family: Arial, sans-serif;

    font-size: 15px;

    font-weight: 500;

    line-height: 1.4;

    text-align: center;

    transition: background-color .15s ease, box-shadow .15s ease;
}

.google-btn:hover {

    background: #f8faff;

    border-color: #d2e3fc;

    color: #3c4043;

    box-shadow: 0 1px 3px rgba(60,64,67,.3);
}

.google-btn:focus-visible {

    outline: 3px solid rgba(66,133,244,.45);

    outline-offset: 2px;
}

.google-btn-icon {

    width: 20px;

    height: 20px;

    flex: 0 0 20px;
}

.divider {

    position: relative;

    text-align: center;

    margin: 25px 0;

    color: rgba(255,255,255,.8);
}

.divider::before {

    content: '';

    position: absolute;

    left: 0;
    right: 0;
    top: 50%;

    border-top: 1px solid rgba(255,255,255,.20);
}

.divider span {

    position: relative;

    padding: 0 15px;

    background: rgba(6,17,43,.35);
}

/* =========================
   FOOTER
========================= */

.footer {

    background: var(--footer-bg);

    color: white;
}

.footer a {

    color: #94a3b8;

    text-decoration: none;
}

.footer a:hover {

    color: white;
}

/* =========================
   THEME BUTTON
========================= */

.theme-btn {

    width: 45px;
}

/* =========================
   MOBILE
========================= */

@media (max-width: 768px) {

    .hero-section {

        min-height: 400px;
    }

    .hero-title {

        font-size: 2.7rem;
    }

    .hero-subtitle {

        font-size: 1rem;
    }

    .auth-card {

        max-width: 100%;

        padding: 25px;
    }
}
.session-row {

    border-radius: 14px;
}

.session-row .fw-bold {

    font-size: 1.1rem;
}

.sessions-list .card {

    transition: .2s;
}

.sessions-list .card:hover {

    transform: translateY(-2px);
}