/* ==========================================================================
   STUDIO TECNICO STASI - Style System
   ========================================================================== */

/* Design Tokens & Theme Variables */
:root {
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transition speeds */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Shadow styles */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);

    /* Theme variables (Dark Only) */
    --bg-primary: #0f0e0c;
    --bg-secondary: #181613;
    --bg-tertiary: #1f1d19;
    
    --text-primary: #f5f3ef;
    --text-secondary: #c2bdb4;
    --text-muted: #8c867b;
    
    --accent: #3da8f5;
    --accent-hover: #69baff;
    --accent-light: rgba(61, 168, 245, 0.15);
    
    --border-color: #2b2721;
    --glass-bg: rgba(24, 22, 19, 0.8);
    --glass-border: rgba(255, 255, 255, 0.06);
    
    --hero-overlay-color: rgba(15, 14, 12, 0.75);
    --blueprint-grid: rgba(61, 168, 245, 0.03);
}

/* Base resets & styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    height: 100%;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.25;
}

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

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

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

.accent-text {
    color: var(--accent);
}

/* Header & Navbar */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: background-color var(--transition-normal), border-color var(--transition-normal), padding var(--transition-normal);
    padding: 20px 0;
}

.header.scrolled {
    padding: 12px 0;
    box-shadow: var(--shadow-sm);
}

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

.logo-link {
    display: flex;
    align-items: center;
}

.logo {
    height: 45px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-normal);
}

.logo:hover {
    transform: scale(1.02);
}


.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    padding: 8px 0;
    position: relative;
    color: var(--text-secondary);
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}


.burger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 101;
}

.burger-menu span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    position: absolute;
    left: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.burger-menu span:nth-child(1) { top: 0; }
.burger-menu span:nth-child(2) { top: 9px; }
.burger-menu span:nth-child(3) { bottom: 0; }

.burger-menu.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.burger-menu.open span:nth-child(2) { opacity: 0; }
.burger-menu.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    /* Grid blueprint overlay on top of the hero background image */
    background-color: #12110f;
    background-image: 
        linear-gradient(var(--blueprint-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--blueprint-grid) 1px, transparent 1px),
        url('assets/hero-bg.png');
    background-size: 40px 40px, 40px 40px, cover;
    background-position: center;
    background-repeat: repeat, repeat, no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradient overlay to ensure text contrast and premium depth */
    background: linear-gradient(135deg, rgba(15, 14, 12, 0.85) 0%, rgba(15, 14, 12, 0.45) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 80px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -1px;
    color: #ffffff;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero .btn-secondary {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}

.hero .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: #ffffff;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
    background-color: var(--accent);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 14px rgba(196, 154, 69, 0.3);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(196, 154, 69, 0.4);
}

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

.btn-secondary:hover {
    background-color: var(--bg-secondary);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-muted);
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--accent);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollMouse 1.5s infinite;
}

@keyframes scrollMouse {
    0% { opacity: 1; transform: translate(-50%, 0); }
    100% { opacity: 0; transform: translate(-50%, 15px); }
}

/* Sections General */
.section {
    padding: 100px 0;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-tag.center {
    display: block;
    text-align: center;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 48px;
    color: var(--text-primary);
}

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

/* Studio Section */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.studio-img-container {
    position: relative;
}

.studio-img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal);
}

.studio-img-container:hover .studio-img {
    transform: scale(1.01);
}

.experience-badge {
    position: absolute;
    bottom: -24px;
    right: -24px;
    background-color: var(--accent);
    color: #ffffff;
    padding: 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.exp-years {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.exp-text {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.3;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.studio-description {
    font-size: 1.1rem;
    margin-bottom: 32px;
    color: var(--text-secondary);
}

.studio-quote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-style: italic;
    font-weight: 400;
    color: var(--text-primary);
    border-left: 3px solid var(--accent);
    padding-left: 20px;
    margin: 24px 0;
}

/* Quote Separator Section */
.quote-separator-section {
    padding: 120px 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.quote-container {
    display: flex;
    justify-content: center;
}

.quote-card {
    max-width: 800px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.quote-icon {
    color: var(--accent);
    opacity: 0.15;
    margin-bottom: 24px;
}

.quote-text {
    font-family: var(--font-heading);
    font-size: clamp(1.4rem, 2.5vw, 1.85rem);
    line-height: 1.5;
    color: var(--text-primary);
    font-weight: 400;
    margin-bottom: 24px;
}

.quote-author {
    font-family: var(--font-heading);
    font-size: 1rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
}

/* Services Section */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 40px 30px;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.service-icon-container {
    color: var(--accent);
    background-color: var(--accent-light);
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.service-card:hover .service-icon-container {
    background-color: var(--accent);
    color: #ffffff;
}

.service-icon {
    stroke-width: 1.75;
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.service-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.cta-content h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.cta-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* Contacts Section */
.contacts-section {
    background-color: var(--bg-primary);
}

.contact-form-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

.contact-form-card h3 {
    margin-bottom: 24px;
    font-size: 1.5rem;
}

.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-heading);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast), outline var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-feedback {
    margin-top: 20px;
    padding: 16px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    text-align: center;
}

.form-feedback.success {
    background-color: var(--accent-light);
    border: 1px solid var(--accent);
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-info-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    display: flex;
    gap: 24px;
    box-shadow: var(--shadow-sm);
}

.card-icon {
    color: var(--accent);
    background-color: var(--accent-light);
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-details h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.address-text, .city-text {
    font-size: 1.05rem;
    color: var(--text-primary);
    font-weight: 500;
}

.links-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 12px 0;
    font-size: 0.95rem;
}

.phone-link:hover, .email-link:hover {
    color: var(--accent);
}

.map-link {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    display: inline-block;
}

.map-link:hover {
    color: var(--accent-hover);
}

/* Partners Section */
.partners-section {
    padding: 60px 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.partners-wrapper {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 32px;
}

.partner-logo {
    height: 45px;
    width: auto;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.45;
    transition: opacity var(--transition-normal), filter var(--transition-normal);
}

.partner-logo:hover {
    filter: grayscale(0%);
    opacity: 0.85;
}

/* Footer */
.footer {
    padding: 40px 0;
    background-color: var(--bg-tertiary);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer a {
    color: var(--text-primary);
    font-weight: 500;
}

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

/* Animations */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        padding: 16px 0;
    }
    
    .logo {
        height: 38px;
    }
    
    /* Navigation drawer for mobile */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--bg-secondary);
        border-left: 1px solid var(--border-color);
        flex-direction: column;
        padding: 100px 40px;
        gap: 24px;
        transition: right var(--transition-normal);
        z-index: 99;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.open {
        right: 0;
    }
    
    .burger-menu {
        display: block;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .studio-text-content {
        order: 1;
    }
    
    .studio-img-container {
        order: 2;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .experience-badge {
        padding: 16px;
        right: -12px;
        bottom: -16px;
    }
    
    .section {
        padding: 70px 0;
    }
}

@media (max-width: 480px) {
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-btns {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .contact-form-card {
        padding: 24px;
    }
    
    .contact-info-card {
        padding: 20px;
        flex-direction: column;
        gap: 16px;
    }
}