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

/* Light theme is the default; dark is available via the navbar toggle */
:root {
    --bg-primary: #f7fafc;
    --bg-secondary: #e9f1f8;
    --bg-card: #ffffff;
    --accent: #0277bd;
    --accent-hover: #01579b;
    --text-primary: #24313d;
    --text-secondary: #55677a;
    --text-heading: #122334;
    --border: #d7e3ee;
    --gradient-start: #e3eef8;
    --gradient-mid: #f4f8fc;
    --gradient-end: #dceaf6;
    --nav-bg: rgba(247, 250, 252, 0.92);
    --nav-bg-solid: rgba(247, 250, 252, 0.98);
    --btn-text: #fff;
    --prose-text: #3a4653;
    --card-shadow: rgba(30, 70, 110, 0.12);
    --icon-shadow: rgba(30, 70, 110, 0.18);
}

:root[data-theme="dark"] {
    --bg-primary: #111111;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --accent: #4fc3f7;
    --accent-hover: #81d4fa;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0b0;
    --text-heading: #ffffff;
    --border: #2a2a3e;
    --gradient-start: #0f0c29;
    --gradient-mid: #1a1a2e;
    --gradient-end: #24243e;
    --nav-bg: rgba(17, 17, 17, 0.92);
    --nav-bg-solid: rgba(17, 17, 17, 0.97);
    --btn-text: #000;
    --prose-text: #ccc;
    --card-shadow: rgba(0, 0, 0, 0.4);
    --icon-shadow: rgba(0, 0, 0, 0.4);
}

/* White-fill logos need inverting on light backgrounds */
.invert-on-light { filter: invert(1); }
:root[data-theme="dark"] .invert-on-light { filter: none; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Source Sans 3', 'Helvetica Neue', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

h1, h2, h3, h4 { font-family: 'Playfair Display', Georgia, serif; color: var(--text-heading); }

/* ===== Navbar ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    padding: 1rem 2rem;
}

.nav-logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem; font-weight: 700;
    color: var(--text-heading) !important;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex; list-style: none; gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary); font-weight: 500;
    font-family: 'Montserrat', sans-serif; font-size: 0.9rem;
    text-transform: uppercase; letter-spacing: 1px;
    transition: color 0.3s;
}

.nav-links a:hover { color: var(--accent); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span {
    display: block; width: 24px; height: 2px;
    background: var(--text-primary); margin: 5px 0;
    transition: 0.3s;
}

@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-links {
        display: none; flex-direction: column; gap: 1rem;
        position: absolute; top: 100%; left: 0; right: 0;
        background: var(--nav-bg-solid); padding: 1.5rem 2rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.active { display: flex; }
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    text-align: center; padding: 6rem 2rem 4rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
    position: relative; overflow: hidden;
}

.hero::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(79, 195, 247, 0.08), transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(129, 212, 250, 0.05), transparent 50%);
}

.hero-content { position: relative; z-index: 1; max-width: 800px; }

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    line-height: 1.2; margin-bottom: 1.5rem;
}

.hero h1 .accent { color: var(--accent); }

.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary); margin-bottom: 2.5rem;
    max-width: 600px; margin-left: auto; margin-right: auto;
}

/* ===== Hero Partner Badge ===== */
.hero-partner-badge {
    display: inline-flex; align-items: center; gap: 0.75rem;
    margin-top: 2.5rem; padding: 0.6rem 1.4rem;
    border: 1px solid var(--border); border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary); font-size: 0.85rem;
    text-decoration: none;
    transition: border-color 0.3s, background 0.3s, transform 0.3s;
}

.hero-partner-badge img { height: 24px; width: auto; }

.hero-partner-badge:hover {
    border-color: var(--accent);
    background: rgba(79, 195, 247, 0.08);
    transform: translateY(-2px);
}

/* ===== App Store Badge ===== */
.app-store-badge {
    height: 54px; width: auto;
    transition: transform 0.3s, opacity 0.3s;
}
.app-store-badge:hover {
    transform: translateY(-2px);
    opacity: 0.85;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block; padding: 0.85rem 2rem;
    font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 0.9rem;
    text-transform: uppercase; letter-spacing: 1px;
    border-radius: 6px; transition: all 0.3s; cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent); color: var(--btn-text);
}

.btn-primary:hover {
    background: var(--accent-hover); color: var(--btn-text);
    transform: translateY(-2px); box-shadow: 0 8px 25px rgba(79, 195, 247, 0.3);
}

.btn-outline {
    background: transparent; color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-outline:hover {
    background: var(--accent); color: var(--btn-text);
    transform: translateY(-2px);
}

.btn-group { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ===== Sections ===== */
.section {
    padding: 5rem 2rem; max-width: 1200px; margin: 0 auto;
}

.section-dark {
    background: var(--bg-secondary);
    padding: 5rem 2rem;
}

.section-dark .section-inner {
    max-width: 1200px; margin: 0 auto;
}

.section h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 1rem; text-align: center;
}

.section-dark h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 1rem; text-align: center;
    color: var(--text-heading);
}

.section-subtitle {
    text-align: center; color: var(--text-secondary);
    margin-bottom: 3rem; font-size: 1.1rem;
}

/* ===== Cards ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px; padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--card-shadow);
}

.card-icon {
    font-size: 2.5rem; margin-bottom: 1rem;
}

.card h3 { font-size: 1.3rem; margin-bottom: 0.75rem; }

.card p { color: var(--text-secondary); font-size: 0.95rem; }

/* ===== Product Page ===== */
.product-hero {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
}

.product-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.product-hero .tagline {
    font-size: 1.2rem; color: var(--text-secondary);
    max-width: 600px; margin: 0 auto 2rem;
}

.feature-list {
    list-style: none; max-width: 700px; margin: 0 auto;
}

.feature-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: flex-start; gap: 1rem;
    font-size: 1.05rem;
}

.feature-list li::before {
    content: '\2713'; color: var(--accent); font-weight: bold;
    flex-shrink: 0; margin-top: 2px;
}

.feature-list li:last-child { border-bottom: none; }

/* ===== Partnerships ===== */
#partnerships { scroll-margin-top: 70px; }

.partner-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px; padding: 2.5rem;
    max-width: 900px; margin: 0 auto;
    display: flex; align-items: flex-start; gap: 2.5rem;
}

.partner-logo-link { flex-shrink: 0; }

.partner-logo {
    width: 220px; height: auto; margin-top: 0.5rem;
}

.partner-body p {
    color: var(--text-secondary); font-size: 0.95rem;
    margin-bottom: 1rem;
}

.partner-body .btn { margin-top: 0.5rem; }

@media (max-width: 768px) {
    .partner-card { flex-direction: column; align-items: center; }
    .partner-logo { width: 180px; margin-top: 0; }
}

/* ===== Partner Logo Marquee ===== */
.logo-marquee {
    overflow: hidden;
    max-width: 900px; margin: 0 auto 3rem;
    padding: 1.5rem 0;
    -webkit-mask-image: linear-gradient(to right, transparent, black 12%, black 88%, transparent);
    mask-image: linear-gradient(to right, transparent, black 12%, black 88%, transparent);
}

.logo-track {
    display: flex; align-items: center;
    width: max-content;
    animation: logo-scroll-ltr 30s linear infinite;
}

.logo-marquee:hover .logo-track { animation-play-state: paused; }

.logo-item {
    display: flex; align-items: center;
    margin-right: 5rem;
    opacity: 0.85; transition: opacity 0.2s ease;
}

.logo-item:hover { opacity: 1; }

.logo-item img { height: 44px; width: auto; }

@keyframes logo-scroll-ltr {
    from { transform: translateX(-50%); }
    to   { transform: translateX(0); }
}

@media (max-width: 768px) {
    .logo-item { margin-right: 3rem; }
    .logo-item img { height: 34px; }
}

/* Hero variant: compact strip replacing the old partner pill badge */
.hero-marquee-wrap { margin-top: 2.5rem; }

.hero-marquee-label {
    display: block;
    color: var(--text-secondary); font-size: 0.85rem;
    text-decoration: none; margin-bottom: 0.75rem;
}

.hero-marquee-label:hover { color: var(--accent); }

.hero-marquee {
    max-width: 560px; margin: 0 auto; padding: 0.75rem 0;
}

.hero-marquee .logo-item { margin-right: 3.5rem; }
.hero-marquee .logo-item img { height: 30px; }

@media (max-width: 768px) {
    .hero-marquee { max-width: 90vw; }
    .hero-marquee .logo-item { margin-right: 2.5rem; }
    .hero-marquee .logo-item img { height: 26px; }
}

/* ===== Contact ===== */
.contact-section {
    padding: 5rem 2rem;
    max-width: 600px; margin: 0 auto; text-align: center;
}

.contact-section h2 { margin-bottom: 1rem; }

.contact-section p { color: var(--text-secondary); margin-bottom: 2rem; }

/* ===== Footer ===== */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.footer-contact { margin-top: 0.5rem; }

/* ===== Admin ===== */
.admin-container {
    max-width: 1000px; margin: 6rem auto 2rem; padding: 2rem;
}

.admin-container h1 { margin-bottom: 2rem; }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem; margin-bottom: 3rem;
}

.stat-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 1.5rem; text-align: center;
}

.stat-card .number {
    font-size: 2.5rem; font-weight: 700; color: var(--accent);
    font-family: 'Montserrat', sans-serif;
}

.stat-card .label {
    color: var(--text-secondary); font-size: 0.85rem;
    text-transform: uppercase; letter-spacing: 1px; margin-top: 0.5rem;
}

.admin-table {
    width: 100%; border-collapse: collapse; margin-top: 1.5rem;
}

.admin-table th, .admin-table td {
    padding: 0.75rem 1rem; text-align: left;
    border-bottom: 1px solid var(--border);
}

.admin-table th {
    color: var(--accent); font-family: 'Montserrat', sans-serif;
    font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px;
}

.admin-table td { color: var(--text-secondary); font-size: 0.9rem; }

.login-form {
    max-width: 400px; margin: 10rem auto; padding: 2.5rem;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 12px; text-align: center;
}

.login-form h2 { margin-bottom: 1.5rem; }

.login-form input[type="password"],
.login-form input[type="text"] {
    width: 100%; padding: 0.75rem 1rem; margin-bottom: 1rem;
    background: var(--bg-primary); border: 1px solid var(--border);
    border-radius: 6px; color: var(--text-primary);
    font-size: 1rem;
}

.login-form input:focus {
    outline: none; border-color: var(--accent);
}

.flash-error {
    color: #ef5350; margin-bottom: 1rem; font-size: 0.9rem;
}

.section-break {
    height: 1px; background: var(--border);
    max-width: 200px; margin: 0 auto 3rem;
}

/* ===== App Icons in Cards ===== */
.card-app-icon {
    width: 80px; height: 80px;
    border-radius: 18px; margin-bottom: 1rem;
    object-fit: cover;
    box-shadow: 0 4px 15px var(--icon-shadow);
}

.product-card { text-align: center; }
.product-card h3 { color: var(--text-heading); }
.product-card p { color: var(--text-secondary); }

/* ===== Hero Background Image ===== */
.hero-bg-image {
    position: absolute; right: -5%; top: 50%;
    transform: translateY(-50%);
    width: 45%; max-width: 500px;
    opacity: 0.15;
    pointer-events: none;
    filter: blur(1px);
}

@media (max-width: 768px) {
    .hero-bg-image { display: none; }
}

/* ===== Product Hero Icon ===== */
.product-hero-icon {
    width: 120px; height: 120px;
    border-radius: 26px; margin-bottom: 1.5rem;
    object-fit: cover;
    box-shadow: 0 8px 30px var(--icon-shadow);
}

.badge {
    display: inline-block; padding: 0.25rem 0.75rem;
    background: rgba(79, 195, 247, 0.15); color: var(--accent);
    border-radius: 20px; font-size: 0.8rem; font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    text-transform: uppercase; letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

/* ===== Publication Card ===== */
.pub-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 12px; padding: 2rem;
    max-width: 700px; margin: 0 auto;
    transition: transform 0.3s, box-shadow 0.3s;
}

.pub-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--card-shadow);
}

.pub-card h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.pub-card .pub-venue { color: var(--accent); font-size: 0.9rem; margin-bottom: 0.75rem; }
.pub-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* ===== Country Flags Grid ===== */
.country-grid {
    display: flex; flex-wrap: wrap; justify-content: center;
    gap: 1.5rem; margin: 2.5rem 0;
}

.country-pill {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: rgba(79, 195, 247, 0.08);
    border: 1px solid rgba(79, 195, 247, 0.2);
    border-radius: 30px; padding: 0.5rem 1.2rem;
    font-family: 'Montserrat', sans-serif; font-size: 0.85rem;
    font-weight: 500; color: var(--text-primary);
    transition: all 0.3s;
}

.country-pill:hover {
    background: rgba(79, 195, 247, 0.15);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.country-pill .flag { font-size: 1.3rem; }

/* ===== Highlight Banner ===== */
.highlight-banner {
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.1), rgba(129, 212, 250, 0.05));
    border: 1px solid rgba(79, 195, 247, 0.2);
    border-radius: 12px; padding: 2rem 2.5rem;
    text-align: center; margin: 2rem auto;
    max-width: 800px;
}

.highlight-banner h3 {
    font-size: 1.4rem; margin-bottom: 0.5rem;
    color: var(--accent);
}

.highlight-banner p {
    color: var(--text-secondary); font-size: 1rem;
}

/* ===== Feature Cards with Icons ===== */
.feature-icon {
    font-size: 2rem; margin-bottom: 0.75rem;
    display: block;
}

.card-accent {
    border-top: 3px solid var(--accent);
}

/* ===== Two-column layout ===== */
.two-col {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 3rem; align-items: center;
    max-width: 1100px; margin: 0 auto;
}

.two-col-text h3 {
    font-size: 1.5rem; margin-bottom: 1rem;
}

.two-col-text p {
    color: var(--text-secondary); font-size: 1.05rem; line-height: 1.8;
}

@media (max-width: 768px) {
    .two-col { grid-template-columns: 1fr; gap: 2rem; }
}

/* ===== Version Badge ===== */
.version-badge {
    display: inline-block; padding: 0.2rem 0.6rem;
    background: rgba(76, 175, 80, 0.15); color: #81c784;
    border-radius: 6px; font-size: 0.75rem; font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    text-transform: uppercase; letter-spacing: 0.5px;
    margin-left: 0.5rem; vertical-align: middle;
}

/* ===== Form Tag ===== */
.form-tags {
    display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem;
}

.form-tag {
    display: inline-block; padding: 0.2rem 0.6rem;
    background: rgba(79, 195, 247, 0.1);
    border: 1px solid rgba(79, 195, 247, 0.15);
    border-radius: 4px; font-size: 0.8rem;
    font-family: 'Montserrat', sans-serif;
    color: var(--text-secondary);
}

/* ===== Promo Video (Tess-Hoshi) ===== */
.video-frame {
    max-width: 340px;
    margin: 0 auto;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: #000;
    box-shadow: 0 20px 60px var(--card-shadow);
}
.video-frame video {
    display: block;
    width: 100%;
    height: auto;
}
.hero-note {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 14px;
}

/* ===== Theme Toggle ===== */
.theme-toggle {
    background: none; border: 1px solid var(--border); border-radius: 999px;
    cursor: pointer; font-size: 1rem; line-height: 1;
    padding: 0.4rem 0.6rem; margin-left: 1rem;
    transition: border-color 0.3s, transform 0.3s;
}
.theme-toggle:hover { border-color: var(--accent); transform: translateY(-1px); }

/* ===== Prose (privacy) ===== */
.prose { color: var(--prose-text); line-height: 1.8; }
.prose h2 { color: var(--text-heading); margin-top: 32px; text-align: left; font-size: 1.5rem; }
.prose h3 { color: var(--text-primary); margin-top: 20px; }
.prose ul { padding-left: 20px; }
.prose p { margin: 0.75rem 0; }

.footer-apps { margin-top: 0.75rem; }
.footer-apps a {
    font-family: 'Montserrat', sans-serif; font-size: 0.85rem;
    font-weight: 600; letter-spacing: 0.5px;
}