/* ---------- BASE ---------- */
* {
    box-sizing: border-box;
}

body {
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #0f172a;
    background-color: #f8fafc;
    line-height: 1.6;
}

a {
    text-decoration: none;
}

/* ---------- HEADER ---------- */
.tts-header {
    position: sticky;
    top: 15px;
    z-index: 999;
}

.tts-header .navbar {
    background: linear-gradient(135deg, #020617, #0f172a);
    border-radius: 999px;
    padding: 12px 24px;
    box-shadow: 0 12px 40px rgba(2, 6, 23, 0.4);
}

.header-logo {
    height: 70px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
}

@media (max-width: 768px) {
    .header-logo {
        height: 55px;
    }
}

.navbar-nav .nav-link {
    font-weight: 600;
    font-size: 15px;
    color: #cbd5f5;
}

.navbar-nav .nav-link.active,
.navbar-nav .nav-link:hover {
    color: #facc15;
}

/* ---------- BUTTONS ---------- */
.btn-primary {
    background: linear-gradient(135deg, #facc15, #f59e0b);
    border: none;
    color: #020617;
    font-weight: 700;
}

.btn-primary:hover {
    opacity: 0.9;
    color: #020617;
}

.btn-outline-light {
    border-color: #475569;
    color: #e5e7eb;
}

.btn-outline-light:hover {
    background: #facc15;
    border-color: #facc15;
    color: #020617;
}

.btn {
    border-radius: 999px;
    font-weight: 700;
    padding-left: 1.6rem;
    padding-right: 1.6rem;
}

/* ---------- HERO ---------- */
.hero-banner {
    /* Premium TV Wall Mounting Background Image */
    background: url("https://images.unsplash.com/photo-1593784991095-a205069470b6?q=80&w=2070&auto=format&fit=crop") center center / cover no-repeat;
    background-color: #0f172a;
    position: relative;
    min-height: 100vh;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    /* Dark gradient so text is readable */
    background: linear-gradient(90deg, rgba(2, 6, 23, 0.85), rgba(2, 6, 23, 0.4));
}

.hero-title {
    font-size: 3.4rem;
    font-weight: 900;
    line-height: 1.15;
    margin-top: 20px;
    color: #ffffff;
}

.hero-title span {
    color: #facc15;
}

.hero-subtitle {
    max-width: 720px;
    margin: 24px auto 0;
    font-size: 18px;
    color: #e2e8f0;
}

.hero-badge {
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    color: #fff;
    padding: 8px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
}

@media (max-width: 992px) {
    .hero-title {
        font-size: 2.3rem;
    }
}

/* ---------- CARDS ---------- */
.card {
    border: none;
    border-radius: 18px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(2, 6, 23, 0.12);
}

.bg-white {
    border-radius: 18px;
}

/* ---------- SECTIONS ---------- */
.bg-light {
    background-color: #f8fafc !important;
}

.bg-primary {
    background: linear-gradient(135deg, #020617, #1e293b) !important;
}

.bg-primary h2,
.bg-primary h6,
.bg-primary p {
    color: #ffffff;
}

section h2 {
    color: #020617;
    font-weight: 800;
}

section p.text-muted {
    color: #64748b !important;
    max-width: 700px;
    margin: auto;
}

section img {
    transition: transform 0.35s ease;
}

section img:hover {
    transform: scale(1.05);
}

/* ---------- FAQ ACCORDION ---------- */
#faqAccordion .accordion-item {
    border: none;
    margin-bottom: 15px;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
    background: #fff;
}

#faqAccordion .accordion-button {
    background: #fff;
    color: #111827;
    font-size: 18px;
    font-weight: 600;
    padding: 22px 25px;
    border: none;
    box-shadow: none !important;
}

#faqAccordion .accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, #0d6efd, #0056d6);
    color: #fff;
}

#faqAccordion .accordion-body {
    padding: 25px;
    font-size: 16px;
    line-height: 1.8;
    color: #6b7280;
    background: #fff;
}

/* ---------- FOOTER ---------- */
.tts-footer {
    background: #020617;
    color: #cbd5f5;
}

.footer-title {
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 14px;
    color: #f8fafc;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: #94a3b8;
    font-size: 14px;
}

.footer-links a:hover {
    color: #facc15;
}

.footer-social a {
    width: 38px;
    height: 38px;
    background: #0f172a;
    color: #cbd5f5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-right: 8px;
    transition: 0.3s;
}

.footer-social a:hover {
    background: linear-gradient(135deg, #facc15, #f59e0b);
    color: #020617;
}

/* ---------- MOBILE ---------- */
@media (max-width: 768px) {
    .tts-header {
        top: 0;
    }
    .tts-header .navbar {
        border-radius: 0;
    }
    .hero-title {
        font-size: 2rem;
    }
    #faqAccordion .accordion-button {
        font-size: 16px;
        padding: 18px;
    }
    #faqAccordion .accordion-body {
        padding: 18px;
        font-size: 15px;
    }
}