/* ===================================
   Norbert Kotzan - Bandoneonist
   Modern Portfolio Website Styles
   =================================== */

/* CSS Custom Properties */
:root {
    --color-primary: #1a1a2e;
    --color-secondary: #16213e;
    --color-accent: #c9a227;
    --color-accent-light: #e6c75a;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --color-light: #f8f9fa;
    --color-border: #e0e0e0;

    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

    --border-radius: 8px;
    --max-width: 1200px;
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    margin-bottom: 1rem;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Section */
.section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.divider {
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-primary);
}

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

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(26, 26, 46, 0.98);
    padding: 0.75rem 0;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9375rem;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

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

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(201,162,39,0.1)"/></svg>') repeat;
    background-size: 30px 30px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    text-align: center;
    padding: var(--spacing-md);
    max-width: 800px;
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
    animation: fadeInUp 0.8s ease forwards;
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-tagline {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    margin: 10px auto 0;
    border-right: 2px solid var(--color-accent);
    border-bottom: 2px solid var(--color-accent);
    transform: rotate(45deg);
    animation: scrollBounce 2s infinite;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollBounce {
    0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
    40% { transform: rotate(45deg) translateY(10px); }
    60% { transform: rotate(45deg) translateY(5px); }
}

/* ===================================
   About Section
   =================================== */
.about {
    background: var(--color-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-image {
    position: relative;
}

.image-placeholder {
    aspect-ratio: 3/4;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.3);
    font-size: 1.25rem;
    font-weight: 500;
}

.image-placeholder.large {
    aspect-ratio: 16/9;
}

.about-text h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.about-text p {
    color: var(--color-text-light);
}

.about-highlights {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.highlight {
    text-align: center;
}

.highlight-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.highlight-text {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* ===================================
   Projects Section
   =================================== */
.projects {
    background: var(--color-light);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.project-summary {
    list-style: none;
    cursor: pointer;
}

.project-summary::-webkit-details-marker {
    display: none;
}

.project-summary::marker {
    content: '';
}

.project-summary:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.project-image {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--color-secondary);
}

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

.project-summary-text {
    padding: var(--spacing-md);
}

.project-summary-text h3 {
    margin-bottom: var(--spacing-xs);
}

.project-summary-text .project-subtitle {
    margin-bottom: 0;
}

.project-summary-cta {
    display: inline-block;
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
}

details[open] .project-summary {
    border-bottom: 1px solid var(--color-border);
}

.project-card.featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.project-image .image-placeholder {
    aspect-ratio: 4/3;
    height: 100%;
}

.project-card.featured .project-image .image-placeholder {
    aspect-ratio: auto;
    height: 100%;
}

.project-content {
    padding: var(--spacing-md);
}

.project-content h3 {
    margin-bottom: var(--spacing-xs);
}

.project-subtitle {
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.project-content > p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

.project-members {
    margin: var(--spacing-sm) 0;
    padding: var(--spacing-sm);
    background: var(--color-light);
    border-radius: var(--border-radius);
}

.project-members li {
    font-size: 0.875rem;
    padding: 0.25rem 0;
    color: var(--color-text-light);
}

.project-repertoire {
    font-size: 0.8125rem;
    font-style: italic;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

/* ===================================
   Concerts Section
   =================================== */
.concerts {
    background: var(--color-white);
}

.concerts-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-text-light);
}

.concerts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
}

.concerts-grid {
    --concert-card-height: 320px;
}

.concerts-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--color-primary);
    margin: 0 0 var(--spacing-md);
}

.concert-card {
    background: var(--color-light);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-accent);
    box-shadow: var(--shadow-sm);
    height: var(--concert-card-height);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.concert-date {
    font-size: 0.875rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.concert-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.concert-meta {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

.concert-details {
    color: var(--color-text-light);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.concert-card .btn {
    margin-top: auto;
}

.concerts-note {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
}

.concerts-actions {
    text-align: center;
    margin-top: var(--spacing-md);
}

/* ===================================
   Services Section
   =================================== */
.services {
    background: var(--color-white);
}

.services-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    color: var(--color-text-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    padding: var(--spacing-md);
    background: var(--color-light);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.service-card:hover {
    background: var(--color-white);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.service-card p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

.services-region {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--border-radius);
    text-align: center;
    color: var(--color-white);
}

.services-region h3 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.services-region p {
    margin: 0;
    opacity: 0.9;
}

/* ===================================
   Press Section
   =================================== */
.press {
    background: var(--color-light);
}

.press-content {
    max-width: 800px;
    margin: 0 auto;
}

.press-quote {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-style: italic;
    text-align: center;
    color: var(--color-primary);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.press-quote::before {
    content: '"';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    font-size: 6rem;
    color: var(--color-accent);
    opacity: 0.3;
    font-family: Georgia, serif;
    line-height: 1;
}

.press-text {
    margin-bottom: var(--spacing-lg);
}

.press-text h3 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.press-text p {
    color: var(--color-text-light);
}

.press-downloads {
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--border-radius);
    text-align: center;
}

.press-downloads h3 {
    margin-bottom: var(--spacing-xs);
}

.press-downloads p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

/* ===================================
   Music Section
   =================================== */
.music {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
}

.music .section-header h2 {
    color: var(--color-white);
}

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

.music-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.music-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    color: var(--color-white);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.music-link:hover {
    background: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-3px);
}

.music-icon {
    width: 24px;
    height: 24px;
}

.music-note {
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background: var(--color-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
}

.contact-info h3 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.contact-info > p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
}

.contact-label {
    font-weight: 500;
    min-width: 80px;
}

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

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

.contact-form .btn {
    margin-top: var(--spacing-sm);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-primary);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-white);
}

.footer-brand p {
    font-size: 0.875rem;
    margin-bottom: 0;
    opacity: 0.7;
}

.footer-nav {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-nav a {
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

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

.footer-social svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    padding-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 0.8125rem;
    opacity: 0.7;
}

.footer-bottom p {
    margin: 0;
}

.footer-links a {
    transition: color var(--transition-fast);
}

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

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 992px) {
    .project-card.featured {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-primary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-md);
        transition: right var(--transition-normal);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .about-highlights {
        flex-wrap: wrap;
        justify-content: center;
    }

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

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

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

    .footer-nav {
        justify-content: center;
    }

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

@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .section {
        padding: var(--spacing-lg) 0;
    }

    .music-links {
        flex-direction: column;
        align-items: center;
    }

    .music-link {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .navbar,
    .hero-cta,
    .scroll-indicator,
    .contact-form,
    .footer-social {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }

    .section {
        padding: var(--spacing-md) 0;
    }
}