/* ============================================
   Invive Medical Journal Silver — Styles
   ============================================ */

:root {
    --coral: #E07A5F;
    --coral-dark: #C9664D;
    --coral-light: #F4D4C8;
    --charcoal: #2D3436;
    --charcoal-light: #454E50;
    --charcoal-dark: #1A1F20;
    --cream: #FDF6F0;
    --cream-dark: #F7EDE3;
    --white: #FFFFFF;
    --off-white: #FAFAF8;
    --gray-100: #F5F5F5;
    --gray-200: #E8E8E8;
    --gray-300: #D1D1D1;
    --gray-500: #888888;
    --gray-700: #555555;
    --green: #27AE60;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 8px rgba(45, 52, 54, 0.06);
    --shadow-md: 0 4px 20px rgba(45, 52, 54, 0.09);
    --shadow-lg: 0 8px 40px rgba(45, 52, 54, 0.12);
    --shadow-coral: 0 6px 24px rgba(224, 122, 95, 0.3);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-body: 'Nunito', 'Segoe UI', system-ui, sans-serif;
    --font-display: 'Playfair Display', 'Georgia', serif;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--charcoal);
    background-color: var(--off-white);
    overflow-x: hidden;
}

img, svg {
    display: block;
    max-width: 100%;
}

a {
    color: var(--coral);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--coral-dark);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: var(--charcoal);
    color: var(--white);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    z-index: 9999;
    font-weight: 700;
}

.skip-link:focus {
    top: 16px;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(253, 246, 240, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(224, 122, 95, 0.12);
    transition: box-shadow var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--charcoal);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--charcoal);
}

.logo-silver {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--coral);
    background: var(--coral-light);
    padding: 2px 10px;
    border-radius: 20px;
    letter-spacing: 0.02em;
}

.nav ul {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav a:not(.btn) {
    color: var(--charcoal);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: background var(--transition), color var(--transition);
}

.nav a:not(.btn):hover {
    background: var(--coral-light);
    color: var(--coral-dark);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 44px;
    height: 44px;
    position: relative;
    align-items: center;
    justify-content: center;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--charcoal);
    position: relative;
    transition: background var(--transition), transform var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--charcoal);
    border-radius: 2px;
    transition: transform var(--transition);
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    transform: translateY(-8px) rotate(-45deg);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 13px 28px;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-coral {
    background: var(--coral);
    color: var(--white);
    border-color: var(--coral);
    box-shadow: var(--shadow-coral);
}

.btn-coral:hover {
    background: var(--coral-dark);
    border-color: var(--coral-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(224, 122, 95, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--charcoal);
    border-color: var(--charcoal);
}

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

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

.btn-white {
    background: var(--white);
    color: var(--coral);
    border-color: var(--white);
}

.btn-white:hover {
    background: var(--cream);
    color: var(--coral-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
    border-radius: var(--radius-xl);
}

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

/* ============================================
   SECTION COMMON
   ============================================ */
.section-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--coral);
    margin-bottom: 12px;
}

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

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--charcoal);
    margin-bottom: 20px;
}

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

.section-subtitle {
    font-size: 1.1rem;
    color: var(--charcoal-light);
    max-width: 640px;
    line-height: 1.7;
}

.section-subtitle.light {
    color: rgba(255, 255, 255, 0.75);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.light {
    margin-bottom: 64px;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    padding: 120px 0 80px;
    background: var(--cream);
    overflow: hidden;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--coral-light) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(224, 122, 95, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

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

.hero-eyebrow {
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--coral);
    margin-bottom: 16px;
}

.hero-headline {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--charcoal-dark);
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--charcoal-light);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 40px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--charcoal);
    background: var(--white);
    padding: 8px 16px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.hero-image {
    position: relative;
}

.hero-img-wrap {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 6 / 7;
    background: var(--gray-200);
}

.hero-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-float-card {
    position: absolute;
    bottom: 40px;
    left: -30px;
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 18px 24px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 14px;
    z-index: 2;
}

.hero-float-card strong {
    display: block;
    font-size: 0.95rem;
    color: var(--charcoal);
}

.hero-float-card span {
    font-size: 0.82rem;
    color: var(--gray-500);
}

/* ============================================
   ABOUT
   ============================================ */
.about {
    padding: 100px 0;
    background: var(--white);
}

.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

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

.about-content p {
    color: var(--charcoal-light);
    margin-bottom: 18px;
    font-size: 1.02rem;
}

.about-list {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    font-weight: 600;
    color: var(--charcoal);
}

.about-list li svg {
    flex-shrink: 0;
}

.about-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 52 / 62;
    background: var(--gray-200);
}

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

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: 100px 0;
    background: var(--cream);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid rgba(224, 122, 95, 0.06);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: var(--coral-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 12px;
}

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

/* ============================================
   WHY US
   ============================================ */
.why-us {
    padding: 100px 0;
    background: var(--charcoal);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.why-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    transition: background var(--transition), transform var(--transition);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.09);
    transform: translateY(-4px);
}

.why-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--coral);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.7;
}

.why-card h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.why-card p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.7;
}

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--coral) 0%, var(--coral-dark) 100%);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
    pointer-events: none;
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: 10%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    pointer-events: none;
}

.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    z-index: 1;
}

.cta-text h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.25;
    margin-bottom: 16px;
}

.cta-text p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 520px;
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    flex-shrink: 0;
}

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

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

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

.contact-desc {
    color: var(--charcoal-light);
    font-size: 1.02rem;
    margin-bottom: 36px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.contact-icon {
    width: 52px;
    height: 52px;
    background: var(--coral-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--coral);
    margin-bottom: 4px;
}

.contact-item p,
.contact-item a {
    font-size: 0.95rem;
    color: var(--charcoal-light);
    line-height: 1.6;
}

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

.map-wrap {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* Contact Form */
.contact-form-wrap {
    background: var(--cream);
    border-radius: var(--radius-xl);
    padding: 44px 40px;
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 28px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 13px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--charcoal);
    background: var(--white);
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
    -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--coral);
    box-shadow: 0 0 0 4px rgba(224, 122, 95, 0.12);
}

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

.form-note {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 14px;
    text-align: center;
}

.form-success {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(39, 174, 96, 0.08);
    border: 1px solid rgba(39, 174, 96, 0.2);
    border-radius: var(--radius-md);
    padding: 18px 22px;
    margin-top: 20px;
    color: var(--green);
    font-size: 0.95rem;
    line-height: 1.6;
}

.form-success strong {
    display: block;
    color: var(--green);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--charcoal-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand p {
    margin-top: 16px;
    font-size: 0.92rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-links strong,
.footer-contact strong {
    display: block;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--coral);
    margin-bottom: 18px;
}

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

.footer-links a,
.footer-contact a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.92rem;
    transition: color var(--transition);
}

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

.footer-contact li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 0.92rem;
    line-height: 1.6;
}

.footer-contact svg {
    flex-shrink: 0;
    margin-top: 3px;
    stroke: var(--coral);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a:hover {
    color: var(--coral-light);
}

/* ============================================
   SCROLL REVEAL (progressive enhancement)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-inner {
        gap: 40px;
    }

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

@media (max-width: 768px) {
    .header-inner {
        height: 68px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: rgba(253, 246, 240, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        padding: 16px 24px 24px;
        border-bottom: 1px solid rgba(224, 122, 95, 0.12);
        box-shadow: var(--shadow-md);
        transform: translateY(-110%);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
        z-index: 999;
    }

    .nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
    }

    .nav a:not(.btn) {
        display: block;
        padding: 12px 16px;
    }

    .nav .btn-coral {
        text-align: center;
        margin-top: 8px;
    }

    .hero {
        padding: 100px 0 60px;
    }

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

    .hero-image {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }

    .hero-float-card {
        left: 10px;
        bottom: 20px;
    }

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

    .about-image {
        max-width: 480px;
        margin: 0 auto;
    }

    .services-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

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

    .cta-inner {
        flex-direction: column;
        text-align: center;
    }

    .cta-actions {
        justify-content: center;
    }

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

    .contact-form-wrap {
        padding: 32px 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 18px;
    }

    .hero-headline {
        font-size: 1.8rem;
    }

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

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

    .hero-float-card {
        position: relative;
        left: 0;
        bottom: 0;
        margin-top: 16px;
    }

    .hero-image {
        max-width: 100%;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 0.95rem;
    }
}