/* ==========================================================================
   STUDIO OSTEOPATIA, MASSOFISIOTERAPIA E CHINESIOLOGIA - VINOVO (TO)
   Main Stylesheet - Design System & Modern UI Tokens
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700&display=swap');

:root {
    /* Color Palette - Medical & Holistic Wellness */
    --primary-h: 184;
    --primary-s: 75%;
    --primary-l: 22%;
    --primary: hsl(var(--primary-h), var(--primary-s), var(--primary-l));
    --primary-light: hsl(var(--primary-h), 60%, 38%);
    --primary-dark: hsl(var(--primary-h), 80%, 14%);
    
    --accent-h: 168;
    --accent-s: 58%;
    --accent-l: 45%;
    --accent: hsl(var(--accent-h), var(--accent-s), var(--accent-l));
    --accent-glow: hsla(var(--accent-h), var(--accent-s), var(--accent-l), 0.25);
    
    --coral-h: 14;
    --coral-s: 78%;
    --coral-l: 60%;
    --coral: hsl(var(--coral-h), var(--coral-s), var(--coral-l));

    /* Neutral Colors - Light Theme */
    --bg-main: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #ffffff;
    --bg-translucent: rgba(255, 255, 255, 0.85);
    --border-color: rgba(15, 23, 42, 0.08);
    --border-hover: rgba(42, 157, 143, 0.4);
    
    --text-main: #0f172a;
    --text-muted: #475569;
    --text-subtle: #94a3b8;
    --text-inverse: #ffffff;
    
    /* Functional Colors */
    --priority-low: #10b981;
    --priority-medium: #f59e0b;
    --priority-high: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Shadow & Glass Effects */
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.07);
    --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);
    --shadow-glow: 0 0 30px hsla(var(--accent-h), var(--accent-s), var(--accent-l), 0.2);
    --glass-blur: blur(16px);
    
    /* Dimensions & Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    --header-height: 80px;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Dark Theme Overrides */
[data-theme="dark"] {
    --bg-main: #090d16;
    --bg-surface: #111827;
    --bg-surface-elevated: #1f293d;
    --bg-translucent: rgba(17, 24, 39, 0.88);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(42, 157, 143, 0.5);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-subtle: #64748b;
    --text-inverse: #0f172a;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .brand-logo img {
    filter: brightness(0) invert(1);
}/* ==========================================================================
   Base & Reset
   ========================================================================== */

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

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-main);
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

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

/* ==========================================================================
   Layout Containers
   ========================================================================== */

.container {
    width: 100%;
    max-width: 1240px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.section-padding {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.text-center {
    text-align: center;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(42, 157, 143, 0.12);
    color: var(--accent);
    border: 1px solid rgba(42, 157, 143, 0.25);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.section-title span {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 3rem;
}

/* ==========================================================================
   Navbar Component
   ========================================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: var(--bg-translucent);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    height: 72px;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--text-main);
}

.brand-logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(42, 157, 143, 0.3);
}

.brand-text-sub {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    display: block;
    margin-top: -3px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
}

.nav-link {
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    color: var(--text-muted);
    transition: color var(--transition-fast);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 1rem;
}

@media (min-width: 1025px) {
    .nav-actions {
        margin-left: 3rem;
    }
}

/* Theme Toggle Button */
.theme-toggle-btn {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
    background: rgba(42, 157, 143, 0.1);
    color: var(--accent);
    border-color: var(--accent);
}

/* Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(13, 92, 99, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(13, 92, 99, 0.4);
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), #21867a);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(42, 157, 143, 0.35);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(42, 157, 143, 0.5);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(42, 157, 143, 0.06);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.05rem;
    border-radius: var(--radius-md);
}

/* Mobile Toggle */
.mobile-nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
    position: relative;
    padding-top: calc(var(--header-height) + 4rem);
    padding-bottom: 6rem;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: -10%;
    right: -5%;
    width: 650px;
    height: 650px;
    background: radial-gradient(circle, hsla(var(--accent-h), var(--accent-s), var(--accent-l), 0.15) 0%, rgba(0,0,0,0) 70%);
    pointer-events: none;
    z-index: -1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 1.1rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

.hero-headline {
    font-size: 3.5rem;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
    line-height: 1.15;
}

.hero-headline span {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subhead {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.25rem;
    max-width: 540px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stat-item h4 {
    font-size: 1.75rem;
    color: var(--primary-light);
    font-weight: 800;
    margin-bottom: 0.2rem;
}

.stat-item p {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Hero Media Stack */
.hero-media-wrapper {
    position: relative;
}

.hero-image-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.hero-image-card img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.hero-image-card:hover img {
    transform: scale(1.03);
}

/* Floating Card Accent */
.hero-floating-card {
    position: absolute;
    bottom: -20px;
    left: -30px;
    background: var(--bg-translucent);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 280px;
    animation: floatAnim 4s ease-in-out infinite alternate;
}

.floating-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(42, 157, 143, 0.15);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.floating-text h5 {
    font-size: 0.95rem;
    margin-bottom: 0.15rem;
}

.floating-text p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

@keyframes floatAnim {
    0% { transform: translateY(0); }
    100% { transform: translateY(-10px); }
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-headline {
        font-size: 2.75rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-nav-toggle {
        display: flex;
    }
}

/* ==========================================================================
   Scroll to Top Button
   ========================================================================== */

.scroll-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(42, 157, 143, 0.4);
}

@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 20px;
        left: 20px;
        width: 45px;
        height: 45px;
    }
}