/* ========================================
   SM AUDIO — Custom Styles
   Charcoal + Coral | Confident Corporate
======================================== */

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

:root {
    --charcoal-950: #0D0F14;
    --charcoal-900: #1A1D23;
    --charcoal-800: #252830;
    --charcoal-700: #323640;
    --charcoal-600: #4A4F5C;
    --charcoal-500: #6B7280;
    --coral-500: #FF6B4A;
    --coral-400: #FF8566;
    --coral-300: #FFA088;
    --coral-600: #E8553A;
    --white: #FFFFFF;
    --off-white: #F8F7F4;
    --font-primary: 'Outfit', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-secondary);
    color: var(--charcoal-900);
    background: var(--white);
    line-height: 1.6;
    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 {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--coral-500);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(255, 107, 74, 0.3);
}

.btn-primary:hover {
    background: var(--coral-600);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 107, 74, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    border-color: var(--coral-500);
    color: var(--coral-400);
    transform: translateY(-2px);
}

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-light:hover {
    background: var(--white);
    color: var(--charcoal-900);
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* --- Section Tags & Titles --- */
.section-tag {
    display: inline-block;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--coral-500);
    margin-bottom: 12px;
}

.section-tag.light {
    color: var(--coral-300);
}

.section-title {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: clamp(2rem, 4vw, 2.75rem);
    line-height: 1.15;
    color: var(--charcoal-900);
    margin-bottom: 16px;
}

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

.section-desc {
    font-size: 1.1rem;
    color: var(--charcoal-600);
    max-width: 560px;
    line-height: 1.7;
}

.section-desc.light {
    color: rgba(255, 255, 255, 0.7);
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 29, 35, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(13, 15, 20, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-mark {
    width: 40px;
    height: 40px;
    background: var(--coral-500);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--white);
}

.logo-text {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--white);
    letter-spacing: 0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.75);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--coral-500);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--coral-500) !important;
    color: var(--white) !important;
    padding: 10px 22px;
    border-radius: 8px;
    font-weight: 600 !important;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: var(--coral-600) !important;
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--white);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--charcoal-900);
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(ellipse 80% 60% at 70% 40%, rgba(255, 107, 74, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 20% 80%, rgba(255, 107, 74, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 107, 74, 0.12);
    border: 1px solid rgba(255, 107, 74, 0.25);
    color: var(--coral-400);
    padding: 8px 16px;
    border-radius: 50px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    margin-bottom: 28px;
}

.hero-badge svg {
    width: 14px;
    height: 14px;
}

.hero-headline {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    line-height: 1.08;
    color: var(--white);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-headline br {
    display: none;
}

.hero-sub {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.75;
    margin-bottom: 40px;
    max-width: 480px;
}

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

/* Hero Visual */
.hero-visual {
    position: relative;
    min-height: 480px;
}

.hero-card-main {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.hero-card-main img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(to top, rgba(13, 15, 20, 0.9), transparent);
}

.card-label {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1rem;
    color: var(--white);
}

.stat-card {
    position: absolute;
    background: var(--charcoal-800);
    border: 1px solid var(--charcoal-700);
    border-radius: 16px;
    padding: 20px 24px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.stat-number {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.75rem;
    color: var(--coral-500);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.4;
    font-weight: 500;
}

.stat-card-1 {
    top: -20px;
    right: -30px;
}

.stat-card-2 {
    bottom: 60px;
    left: -40px;
}

.stat-card-3 {
    bottom: -20px;
    right: 40px;
}

/* Hero Wave */
.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: 80px;
}

/* --- Services Section --- */
.services {
    padding: 100px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header .section-desc {
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--off-white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 16px;
    padding: 40px 36px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--coral-500);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: transparent;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 107, 74, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--coral-500);
    margin-bottom: 24px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--coral-500);
    color: var(--white);
}

.service-card h3 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--charcoal-900);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--charcoal-600);
    line-height: 1.7;
}

/* --- About Section --- */
.about {
    padding: 100px 0;
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image-wrap {
    position: relative;
    min-height: 500px;
}

.about-image-main {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.1);
}

.about-image-main img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.about-image-accent {
    position: absolute;
    bottom: -30px;
    right: -30px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border: 4px solid var(--off-white);
}

.about-image-accent img {
    width: 300px;
    height: 220px;
    object-fit: cover;
    display: block;
}

.about-content .section-tag {
    margin-bottom: 16px;
}

.about-content .section-title {
    margin-bottom: 24px;
}

.about-text {
    font-size: 1rem;
    color: var(--charcoal-600);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 32px 0 40px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--charcoal-800);
}

.about-feature svg {
    flex-shrink: 0;
}

/* --- Why Us Section --- */
.why-us {
    padding: 100px 0;
    background: var(--charcoal-900);
    position: relative;
    overflow: hidden;
}

.why-us::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 107, 74, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.why-card {
    background: var(--charcoal-800);
    border: 1px solid var(--charcoal-700);
    border-radius: 16px;
    padding: 40px 36px;
    transition: var(--transition);
}

.why-card:hover {
    border-color: rgba(255, 107, 74, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.why-number {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 3rem;
    color: rgba(255, 107, 74, 0.15);
    line-height: 1;
    margin-bottom: 20px;
}

.why-card h3 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 12px;
}

.why-card p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.75;
}

/* --- CTA Section --- */
.cta-section {
    padding: 100px 0;
    background: var(--coral-500);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(0, 0, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.cta-content .section-tag {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 16px;
}

.cta-title {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 20px;
}

.cta-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
    max-width: 480px;
}

.cta-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex-shrink: 0;
}

/* --- Contact Section --- */
.contact {
    padding: 100px 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-tag {
    margin-bottom: 16px;
}

.contact-info .section-title {
    margin-bottom: 20px;
}

.contact-desc {
    font-size: 1rem;
    color: var(--charcoal-600);
    line-height: 1.75;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 107, 74, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--coral-500);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--charcoal-900);
    margin-bottom: 4px;
}

.contact-item p,
.contact-item a {
    font-size: 0.95rem;
    color: var(--charcoal-600);
}

.contact-item a:hover {
    color: var(--coral-500);
}

/* Contact Form */
.contact-form-wrap {
    background: var(--off-white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 20px;
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--charcoal-800);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-secondary);
    font-size: 0.95rem;
    color: var(--charcoal-900);
    background: var(--white);
    border: 1.5px solid var(--charcoal-700);
    border-radius: 10px;
    padding: 14px 16px;
    transition: var(--transition);
    outline: none;
    width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--charcoal-500);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--coral-500);
    box-shadow: 0 0 0 3px rgba(255, 107, 74, 0.12);
}

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

.form-success {
    text-align: center;
    padding: 40px 20px;
}

.form-success svg {
    margin: 0 auto 20px;
}

.form-success h3 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--charcoal-900);
    margin-bottom: 8px;
}

.form-success p {
    color: var(--charcoal-600);
    font-size: 0.95rem;
}

/* --- Footer --- */
.footer {
    background: var(--charcoal-950);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--charcoal-800);
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.75;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--white);
    margin-bottom: 20px;
    letter-spacing: 0.04em;
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a,
.footer-contact a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--coral-400);
}

.footer-bottom {
    padding: 28px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.35);
}

/* --- Mobile Menu --- */
.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--charcoal-950);
    border-bottom: 1px solid var(--charcoal-800);
    padding: 24px;
    z-index: 999;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-menu a {
    display: block;
    padding: 14px 16px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.75);
    border-radius: 10px;
}

.mobile-menu a:hover {
    background: var(--charcoal-800);
    color: var(--white);
}

.mobile-menu .nav-cta {
    text-align: center;
    background: var(--coral-500);
    color: var(--white);
    margin-top: 8px;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-visual {
        max-width: 500px;
    }

    .about-grid {
        gap: 48px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero-headline br {
        display: block;
    }

    .hero-visual {
        min-height: 360px;
    }

    .hero-card-main img {
        height: 300px;
    }

    .stat-card-1 {
        right: -10px;
    }

    .stat-card-2 {
        left: -10px;
    }

    .stat-card-3 {
        right: 10px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-image-wrap {
        min-height: 360px;
    }

    .about-image-main img {
        height: 360px;
    }

    .about-image-accent {
        right: -10px;
        bottom: -20px;
    }

    .about-image-accent img {
        width: 200px;
        height: 150px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .why-grid {
        grid-template-columns: 1fr;
    }

    .cta-card {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .cta-actions {
        flex-direction: row;
        justify-content: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .contact-form-wrap {
        padding: 28px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 90px 0 50px;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 6px 12px;
    }

    .stat-card {
        padding: 14px 18px;
    }

    .stat-number {
        font-size: 1.4rem;
    }

    .service-card {
        padding: 28px 24px;
    }

    .why-card {
        padding: 28px 24px;
    }

    .cta-actions {
        flex-direction: column;
    }
}

/* --- Scroll Reveal (Progressive Enhancement) --- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }

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

/* Default state: always visible for accessibility */
.reveal {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
}