/* ============================================
   Pigtail Charlie's Diner — Stylesheet
   Clean minimalist · Teal & Slate Grey
   ============================================ */

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

:root {
    --teal-50: #f0fdfa;
    --teal-100: #ccfbf1;
    --teal-200: #99f6e4;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --teal-700: #0f766e;
    --teal-800: #115e59;
    --teal-900: #134e4a;
    
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-sans);
    font-weight: 300;
    color: var(--slate-800);
    background: #ffffff;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: var(--teal-600);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--teal-700);
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-weight: 400;
    line-height: 1.2;
    color: var(--slate-900);
}

.section-eyebrow {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--teal-600);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 500;
    color: var(--slate-900);
    margin-bottom: 20px;
    line-height: 1.15;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--slate-500);
    max-width: 520px;
    line-height: 1.7;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    border-radius: 100px;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--teal-600);
    color: #ffffff;
    border-color: var(--teal-600);
}

.btn-primary:hover {
    background: var(--teal-700);
    border-color: var(--teal-700);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(13, 148, 136, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--teal-600);
    border-color: var(--teal-600);
}

.btn-outline:hover {
    background: var(--teal-600);
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-text {
    background: transparent;
    color: var(--teal-600);
    border: none;
    padding: 14px 16px;
}

.btn-text:hover {
    color: var(--teal-700);
    transform: translateX(4px);
}

.btn-full {
    width: 100%;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--slate-100);
    transition: all var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.06);
}

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

.logo {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--slate-900);
    letter-spacing: -0.01em;
}

.logo:hover {
    color: var(--teal-600);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--slate-600);
    letter-spacing: 0.02em;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--teal-600);
    transition: width var(--transition);
}

.nav-links a:hover {
    color: var(--teal-600);
}

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--slate-700);
    transition: all var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -5px);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--slate-700);
    cursor: pointer;
    line-height: 1;
    transition: color var(--transition);
}

.mobile-menu-close:hover {
    color: var(--teal-600);
}

.mobile-nav-links {
    list-style: none;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.mobile-nav-links a {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    color: var(--slate-800);
    transition: color var(--transition);
}

.mobile-nav-links a:hover {
    color: var(--teal-600);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        var(--teal-800) 0%, 
        var(--teal-600) 35%, 
        var(--teal-500) 60%, 
        var(--slate-400) 100%);
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 20% 80%, rgba(13, 148, 136, 0.4) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 20%, rgba(100, 116, 139, 0.3) 0%, transparent 60%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 120px 24px 80px;
    max-width: 780px;
}

.hero-eyebrow {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--teal-200);
    margin-bottom: 24px;
}

.hero-headline {
    font-family: var(--font-serif);
    font-size: clamp(2.25rem, 5.5vw, 4rem);
    font-weight: 500;
    color: #ffffff;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.hero-subhead {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: rgba(255, 255, 255, 0.8);
    max-width: 520px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.hero-actions .btn-outline {
    border-color: rgba(255, 255, 255, 0.6);
    color: #ffffff;
}

.hero-actions .btn-outline:hover {
    background: #ffffff;
    border-color: #ffffff;
    color: var(--teal-700);
}

.hero-actions .btn-text {
    color: rgba(255, 255, 255, 0.85);
    padding: 14px 16px;
}

.hero-actions .btn-text:hover {
    color: #ffffff;
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.scroll-indicator::after {
    content: '';
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); }
}

/* --- Intro Section --- */
.intro {
    padding: 100px 0;
    background: #ffffff;
}

.intro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.intro-item {
    text-align: left;
}

.intro-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--slate-200);
    border-radius: 12px;
    margin-bottom: 20px;
    color: var(--teal-600);
    transition: all var(--transition);
}

.intro-item:hover .intro-icon {
    border-color: var(--teal-600);
    background: var(--teal-50);
}

.intro-item h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--slate-900);
}

.intro-item p {
    font-size: 0.9375rem;
    color: var(--slate-500);
    line-height: 1.7;
}

/* --- Menu Section --- */
.menu-section {
    padding: 100px 0;
    background: var(--slate-50);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header .section-subtitle {
    margin: 0 auto;
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.menu-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 40px 32px;
    border: 1px solid var(--slate-100);
    transition: all var(--transition);
}

.menu-card:hover {
    border-color: var(--teal-200);
    box-shadow: 0 8px 32px rgba(13, 148, 136, 0.08);
    transform: translateY(-4px);
}

.menu-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--slate-100);
}

.menu-tag {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--slate-900);
}

.menu-tag-tag {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--teal-600);
    background: var(--teal-50);
    padding: 4px 10px;
    border-radius: 100px;
    margin-left: auto;
}

.menu-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.menu-list li {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.menu-item-name {
    font-weight: 500;
    font-size: 1rem;
    color: var(--slate-800);
}

.menu-item-desc {
    font-size: 0.875rem;
    color: var(--slate-400);
    line-height: 1.5;
}

.menu-note {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--slate-400);
    font-style: italic;
}

/* --- About Section --- */
.about-section {
    padding: 100px 0;
    background: #ffffff;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image {
    border-radius: 16px;
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-image:hover img {
    transform: scale(1.02);
}

.about-content .section-eyebrow {
    margin-bottom: 16px;
}

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

.about-text {
    font-size: 1rem;
    color: var(--slate-500);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-signature {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--slate-100);
}

.about-signature p {
    font-size: 0.875rem;
    color: var(--slate-400);
    line-height: 1.8;
}

.about-signature p:first-child {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--slate-700);
    margin-bottom: 4px;
}

/* --- Visit Section --- */
.visit-section {
    padding: 100px 0;
    background: var(--slate-50);
}

.visit-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.visit-info .section-eyebrow {
    margin-bottom: 16px;
}

.visit-info .section-title {
    margin-bottom: 40px;
}

.visit-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.visit-detail {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.visit-detail svg {
    color: var(--teal-600);
    flex-shrink: 0;
    margin-top: 2px;
}

.visit-detail strong {
    display: block;
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--slate-800);
    margin-bottom: 4px;
}

.visit-detail p {
    font-size: 0.9375rem;
    color: var(--slate-500);
    line-height: 1.6;
}

.visit-detail a {
    color: var(--slate-500);
}

.visit-detail a:hover {
    color: var(--teal-600);
}

.visit-map {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.visit-map img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 16px;
}

.map-btn {
    align-self: flex-start;
}

/* --- Contact Section --- */
.contact-section {
    padding: 100px 0;
    background: #ffffff;
}

.contact-content {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
}

.contact-content .section-eyebrow {
    margin-bottom: 16px;
}

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

.contact-content .section-subtitle {
    margin: 0 auto 48px;
}

.contact-form {
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--slate-500);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 300;
    color: var(--slate-800);
    background: var(--slate-50);
    border: 1.5px solid var(--slate-200);
    border-radius: 10px;
    outline: none;
    transition: all var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--teal-500);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--slate-300);
}

.form-success {
    display: none;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
    padding: 16px 20px;
    background: var(--teal-50);
    border: 1px solid var(--teal-200);
    border-radius: 10px;
    color: var(--teal-700);
    font-size: 0.9375rem;
}

.form-success.show {
    display: flex;
}

.form-success svg {
    color: var(--teal-600);
    flex-shrink: 0;
}

/* --- Footer --- */
.footer {
    padding: 72px 0 0;
    background: var(--slate-900);
    color: var(--slate-400);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 56px;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 500;
    color: #ffffff;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--slate-400);
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--slate-300);
    margin-bottom: 20px;
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a,
.footer-contact a {
    font-size: 0.9375rem;
    color: var(--slate-400);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--teal-400);
}

.footer-bottom {
    border-top: 1px solid var(--slate-800);
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--slate-500);
}

/* --- Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
    .menu-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .menu-card:last-child {
        grid-column: span 2;
        max-width: 480px;
        margin: 0 auto;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-content {
        padding: 100px 20px 60px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .intro-item {
        text-align: center;
    }
    
    .intro-icon {
        margin: 0 auto 20px;
    }
    
    .menu-grid {
        grid-template-columns: 1fr;
    }
    
    .menu-card:last-child {
        grid-column: auto;
        max-width: none;
        margin: 0;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        order: -1;
    }
    
    .visit-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        padding: 20px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-headline {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }
    
    .section-title {
        font-size: clamp(1.75rem, 6vw, 2.25rem);
    }
    
    .menu-card {
        padding: 28px 24px;
    }
}