/* ========================================
   QSP Systems - Modern Medical Software Site
   ======================================== */

:root {
    --primary: #0a5e8c;
    --primary-dark: #064268;
    --primary-light: #1a8fd4;
    --accent: #00c9a7;
    --accent-dark: #00a88c;
    --red: #e63946;
    --dark: #1a1d23;
    --dark-soft: #2d3139;
    --gray-900: #212529;
    --gray-700: #495057;
    --gray-500: #6c757d;
    --gray-300: #dee2e6;
    --gray-100: #f8f9fa;
    --white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gray-700);
    line-height: 1.7;
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    line-height: 1.25;
    font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.6rem); }
h4 { font-size: 1.15rem; }

p { margin-bottom: 1rem; }

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--primary-light); }

img { max-width: 100%; height: auto; }

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

.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--gray-100);
}

.section-dark {
    background: var(--dark);
    color: var(--gray-300);
}
.section-dark h2,
.section-dark h3 {
    color: var(--white);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}

.section-header h2 {
    margin-bottom: 12px;
}

.section-header p {
    color: var(--gray-500);
    font-size: 1.05rem;
}

.label-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    background: rgba(0,201,167,0.1);
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 12px;
}

/* ---- Navigation ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: box-shadow var(--transition);
}

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

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.35rem;
    color: var(--dark);
    text-decoration: none;
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.logo-text small {
    font-size: 0.6rem;
    font-weight: 500;
    color: var(--gray-500);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
}

.nav-links a {
    display: inline-block;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-700);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
    background: rgba(10,94,140,0.06);
}

.nav-cta {
    margin-left: 8px;
}

.nav-cta a {
    background: var(--primary) !important;
    color: var(--white) !important;
    padding: 10px 22px !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
}
.nav-cta a:hover {
    background: var(--primary-dark) !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: none;
    border: none;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ---- Hero ---- */
.hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--dark) 0%, #0d2137 60%, var(--primary-dark) 100%);
    overflow: hidden;
    padding-top: 72px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0,201,167,0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(26,143,212,0.10) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    color: var(--white);
}

.hero-content h1 {
    color: var(--white);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    margin-bottom: 20px;
    line-height: 1.15;
}

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

.hero-content p {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 32px;
    max-width: 480px;
    line-height: 1.8;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-graphic {
    position: relative;
    width: 100%;
    max-width: 460px;
}

.hero-card {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.hero-card-row {
    display: flex;
    gap: 16px;
    align-items: center;
}

.hero-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.hero-card-icon.blue { background: rgba(26,143,212,0.2); color: var(--primary-light); }
.hero-card-icon.green { background: rgba(0,201,167,0.2); color: var(--accent); }
.hero-card-icon.red { background: rgba(230,57,70,0.2); color: var(--red); }

.hero-card-text h4 {
    color: var(--white);
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.hero-card-text p {
    color: rgba(255,255,255,0.5);
    font-size: 0.82rem;
    margin-bottom: 0;
}

.hero-pulse {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0,201,167,0.5); }
    50% { box-shadow: 0 0 0 14px rgba(0,201,167,0); }
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 30px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
}

.btn-primary {
    background: var(--accent);
    color: var(--dark);
}
.btn-primary:hover {
    background: var(--accent-dark);
    color: var(--dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,201,167,0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
    border-color: var(--white);
    color: var(--white);
    background: rgba(255,255,255,0.06);
}

.btn-secondary {
    background: var(--primary);
    color: var(--white);
}
.btn-secondary:hover {
    background: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(10,94,140,0.3);
}

.btn-group {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* ---- Stats Bar ---- */
.stats-bar {
    background: var(--white);
    padding: 32px 0;
    border-bottom: 1px solid var(--gray-300);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat-item h3 {
    font-size: 2rem;
    color: var(--primary);
    font-weight: 800;
}

.stat-item p {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 0;
}

/* ---- Feature Cards / Services ---- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.card {
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 20px;
    background: rgba(10,94,140,0.08);
    color: var(--primary);
}

.card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.card p {
    font-size: 0.92rem;
    color: var(--gray-500);
    margin-bottom: 0;
}

.card-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity var(--transition);
}

.card:hover .card-accent {
    opacity: 1;
}

/* ---- About / Content Block ---- */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.content-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.content-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.content-text h2 {
    margin-bottom: 16px;
}

.content-text p {
    color: var(--gray-500);
    margin-bottom: 16px;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 24px 0;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    font-size: 0.95rem;
}

.feature-list li::before {
    content: '\2713';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(0,201,167,0.12);
    color: var(--accent-dark);
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ---- Products ---- */
.product-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
    transition: all var(--transition);
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.product-card-img {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.product-card-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
}

.product-card-body {
    padding: 24px;
}

.product-card-body h3 {
    margin-bottom: 8px;
}

.product-card-body p {
    color: var(--gray-500);
    font-size: 0.9rem;
}

/* ---- Gallery ---- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
}

.gallery-item {
    aspect-ratio: 4/3;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(transparent 50%, rgba(0,0,0,0.6));
    opacity: 0;
    transition: opacity var(--transition);
    display: flex;
    align-items: flex-end;
    padding: 16px;
}

.gallery-item:hover .gallery-item-overlay {
    opacity: 1;
}

.gallery-item-overlay span {
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 500;
}

/* ---- Contact ---- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: rgba(10,94,140,0.08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.contact-item p {
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-bottom: 0;
}

.contact-form {
    background: var(--white);
    padding: 36px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-300);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--transition);
    background: var(--white);
    color: var(--dark);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(10,94,140,0.1);
}

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

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

.form-message {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.form-message.success {
    background: rgba(0,201,167,0.1);
    color: var(--accent-dark);
    border: 1px solid rgba(0,201,167,0.2);
}

.form-message.error {
    background: rgba(230,57,70,0.1);
    color: var(--red);
    border: 1px solid rgba(230,57,70,0.2);
}

/* ---- Page Content ---- */
.page-hero {
    background: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 100%);
    padding: 140px 0 60px;
    text-align: center;
    color: var(--white);
}

.page-hero h1 {
    color: var(--white);
    margin-bottom: 10px;
}

.page-hero p {
    color: rgba(255,255,255,0.6);
    font-size: 1.1rem;
}

.page-content {
    padding: 60px 0;
}

.page-content .container {
    max-width: 800px;
}

.page-content img {
    border-radius: var(--radius-sm);
    margin: 16px 0;
}

.page-content h2 {
    margin-top: 32px;
    margin-bottom: 16px;
}

.page-content h3 {
    margin-top: 24px;
    margin-bottom: 12px;
}

.page-content ul, .page-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.page-content li {
    margin-bottom: 6px;
}

.page-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.page-content table th,
.page-content table td {
    border: 1px solid var(--gray-300);
    padding: 10px 14px;
    text-align: left;
}

.page-content table th {
    background: var(--gray-100);
    font-weight: 600;
}

.page-content .section-intro {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary);
    margin: 28px 0 20px;
    padding: 16px 0;
    border-top: 2px solid var(--gray-300);
    border-bottom: 2px solid var(--gray-300);
}

/* ---- CTA Section ---- */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 80px 0;
    text-align: center;
    color: var(--white);
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: 16px;
}

.cta-section p {
    color: rgba(255,255,255,0.7);
    font-size: 1.1rem;
    margin-bottom: 28px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ---- Footer ---- */
.footer {
    background: var(--dark);
    color: var(--gray-500);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer h4 {
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: var(--gray-500);
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

.footer-contact-item {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.footer-contact-item span:first-child {
    color: var(--accent);
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}

.footer-bottom {
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
}

.footer-flags {
    display: flex;
    gap: 8px;
    align-items: center;
}

.footer-flags img {
    height: 16px;
    opacity: 0.6;
    transition: opacity var(--transition);
}

.footer-flags img:hover {
    opacity: 1;
}

/* ---- Lightbox ---- */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0,0,0,0.9);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90vw;
    max-height: 85vh;
    border-radius: var(--radius-sm);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    color: var(--white);
    font-size: 2rem;
    cursor: pointer;
    background: none;
    border: none;
    opacity: 0.7;
    transition: opacity var(--transition);
}

.lightbox-close:hover {
    opacity: 1;
}

/* ---- Scroll Animations ---- */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content p { margin-left: auto; margin-right: auto; }
    .hero-visual { display: none; }
    .btn-group { justify-content: center; }
    .content-grid { grid-template-columns: 1fr; gap: 32px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--gray-300);
        gap: 0;
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 12px 0; width: 100%; }
    .nav-cta { margin-left: 0; margin-top: 8px; }
    .nav-cta a { display: block; text-align: center; }
    .hamburger { display: flex; }
    .hero { min-height: 80vh; }
    .section { padding: 60px 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .form-row { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
    .card-grid { grid-template-columns: 1fr; }
}