/* ═══════════════════════════════════════════════════════════════
   ÉTOILE - Ristorante 3 Stelle Michelin
   Minimal Luxury Design System
   ═══════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────────────────────────
   CSS CUSTOM PROPERTIES
   ───────────────────────────────────────────────────────────────── */

:root {
    /* Colors */
    --color-black: #0A0A0A;
    --color-white: #FAFAFA;
    --color-gold: #C9A962;
    --color-gold-light: #D4B978;
    --color-gray: #888888;
    --color-gray-dark: #333333;
    --color-gray-light: #E5E5E5;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    
    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-medium: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 800ms cubic-bezier(0.25, 0.1, 0.25, 1);
    
    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;
}

/* ─────────────────────────────────────────────────────────────────
   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: 300;
    line-height: 1.7;
    color: var(--color-white);
    background-color: var(--color-black);
    -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);
}

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

/* Focus States - Accessibilità */
:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 4px;
}

/* ─────────────────────────────────────────────────────────────────
   TYPOGRAPHY
   ───────────────────────────────────────────────────────────────── */

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: 0.02em;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    letter-spacing: 0.1em;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-md);
}

h3 {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    margin-bottom: var(--space-sm);
}

p {
    margin-bottom: var(--space-sm);
    color: var(--color-gray);
}

p:last-child {
    margin-bottom: 0;
}

/* ─────────────────────────────────────────────────────────────────
   LAYOUT
   ───────────────────────────────────────────────────────────────── */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--space-xl) 0;
    position: relative;
}

.section__header {
    margin-bottom: var(--space-lg);
}

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

.section__label {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-gold);
    margin-bottom: var(--space-sm);
}

.section__desc {
    max-width: 600px;
    margin-top: var(--space-sm);
    color: var(--color-gray);
}

.section__header--center .section__desc {
    margin-left: auto;
    margin-right: auto;
}

/* ─────────────────────────────────────────────────────────────────
   NAVIGATION
   ───────────────────────────────────────────────────────────────── */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: background var(--transition-medium), padding var(--transition-medium);
}

.nav.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-sm) 0;
}

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

.nav__logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.1em;
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    z-index: 1001;
}

.nav__toggle span {
    display: block;
    width: 24px;
    height: 1px;
    background: var(--color-white);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav__toggle[aria-expanded="true"] span:first-child {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle[aria-expanded="true"] span:last-child {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav__menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    background: var(--color-black);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
}

.nav__menu.active {
    opacity: 1;
    visibility: visible;
}

.nav__menu a {
    font-size: 1.25rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.nav__menu a:hover {
    color: var(--color-gold);
}

.nav__cta {
    color: var(--color-gold) !important;
}

@media (min-width: 768px) {
    .nav__toggle {
        display: none;
    }
    
    .nav__menu {
        position: static;
        flex-direction: row;
        gap: var(--space-md);
        background: none;
        opacity: 1;
        visibility: visible;
    }
    
    .nav__menu a {
        font-size: 0.75rem;
    }
}

/* ─────────────────────────────────────────────────────────────────
   HERO
   ───────────────────────────────────────────────────────────────── */

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

.hero__bg {
    position: absolute;
    inset: 0;
    background: url('media/hero.jpg') center/cover no-repeat;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(10, 10, 10, 0.7) 0%,
        rgba(10, 10, 10, 0.5) 50%,
        rgba(10, 10, 10, 0.9) 100%
    );
}

.hero__content {
    position: relative;
    text-align: center;
    padding: var(--space-md);
}

.hero__stars {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    color: var(--color-gold);
    font-size: 1.25rem;
    animation: fadeInDown 1s var(--transition-slow) both;
}

.hero__title {
    animation: fadeIn 1s 0.3s var(--transition-slow) both;
}

.hero__subtitle {
    font-size: 0.875rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-white);
    margin-bottom: var(--space-md);
    animation: fadeIn 1s 0.5s var(--transition-slow) both;
}

.hero__line {
    width: 60px;
    height: 1px;
    background: var(--color-gold);
    margin: 0 auto var(--space-md);
    animation: scaleIn 1s 0.7s var(--transition-slow) both;
}

.hero__tagline {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.125rem;
    color: var(--color-gray-light);
    animation: fadeIn 1s 0.9s var(--transition-slow) both;
}

.hero__scroll {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    animation: fadeIn 1s 1.2s var(--transition-slow) both;
}

.hero__scroll span {
    display: block;
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-gold), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

/* ─────────────────────────────────────────────────────────────────
   FILOSOFIA
   ───────────────────────────────────────────────────────────────── */

.filosofia__grid {
    display: grid;
    gap: var(--space-lg);
    align-items: center;
}

@media (min-width: 768px) {
    .filosofia__grid {
        grid-template-columns: 1fr 1fr;
    }
}

.filosofia__quote blockquote {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1.5rem, 3vw, 2rem);
    line-height: 1.5;
    color: var(--color-white);
}

.filosofia__quote footer {
    margin-top: var(--space-md);
}

.filosofia__quote cite {
    font-style: normal;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    color: var(--color-gold);
}

.filosofia__content h2 {
    color: var(--color-white);
}

.filosofia__content p {
    font-size: 1rem;
}

.filosofia__signature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-gray-dark);
}

.filosofia__chef-img {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter var(--transition-medium);
}

.filosofia__signature:hover .filosofia__chef-img {
    filter: grayscale(0%);
}

.filosofia__signature strong {
    display: block;
    color: var(--color-white);
    font-weight: 500;
}

.filosofia__signature span {
    font-size: 0.75rem;
    color: var(--color-gray);
    letter-spacing: 0.05em;
}

/* ─────────────────────────────────────────────────────────────────
   ESPERIENZA
   ───────────────────────────────────────────────────────────────── */

.esperienza {
    background: var(--color-black);
}

.esperienza__grid {
    display: grid;
    gap: var(--space-md);
}

@media (min-width: 768px) {
    .esperienza__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.esperienza__card {
    position: relative;
    padding: var(--space-md);
    border: 1px solid var(--color-gray-dark);
    transition: border-color var(--transition-medium), transform var(--transition-medium);
}

.esperienza__card:hover {
    border-color: var(--color-gold);
    transform: translateY(-4px);
}

.esperienza__card--featured {
    border-color: var(--color-gold);
}

.esperienza__card-number {
    font-family: var(--font-display);
    font-size: 3rem;
    color: var(--color-gray-dark);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.esperienza__card h3 {
    color: var(--color-white);
}

.esperienza__meta {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-md);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-gray-dark);
}

.esperienza__duration,
.esperienza__price {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.esperienza__price {
    color: var(--color-gold);
}

.esperienza__badge {
    position: absolute;
    top: -1px;
    right: -1px;
    padding: 0.5rem 1rem;
    background: var(--color-gold);
    color: var(--color-black);
    font-size: 0.625rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 500;
}

/* ─────────────────────────────────────────────────────────────────
   MENU
   ───────────────────────────────────────────────────────────────── */

.menu {
    background: #050505;
}

.menu__bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: url('media/menu-bg.jpg') center/cover no-repeat;
    opacity: 0.15;
    mask-image: linear-gradient(to left, rgba(0,0,0,1), rgba(0,0,0,0));
    -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1), rgba(0,0,0,0));
}

.menu__grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    max-width: 700px;
}

.menu__item {
    display: flex;
    gap: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-gray-dark);
    transition: transform var(--transition-medium);
}

.menu__item:hover {
    transform: translateX(8px);
}

.menu__item-number {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-gold);
    min-width: 40px;
}

.menu__item h3 {
    color: var(--color-white);
    font-size: 1.125rem;
}

.menu__item p {
    font-size: 0.875rem;
}

.menu__footer {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-gray-dark);
}

.menu__footer p {
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ─────────────────────────────────────────────────────────────────
   GALLERY
   ───────────────────────────────────────────────────────────────── */

.gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.gallery__item {
    position: relative;
    aspect-ratio: 3/2;
    overflow: hidden;
}

.gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter var(--transition-medium), transform var(--transition-slow);
}

.gallery__item:hover img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

@media (max-width: 767px) {
    .gallery {
        grid-template-columns: 1fr;
    }
}

/* ─────────────────────────────────────────────────────────────────
   PRENOTAZIONI
   ───────────────────────────────────────────────────────────────── */

.prenotazioni {
    background: var(--color-black);
}

.form {
    margin-top: var(--space-lg);
}

.form__row {
    display: grid;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

@media (min-width: 768px) {
    .form__row {
        grid-template-columns: 1fr 1fr;
    }
}

.form__group {
    margin-bottom: var(--space-md);
}

.form__row .form__group {
    margin-bottom: 0;
}

.form__label {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-gray);
    margin-bottom: var(--space-xs);
}

.form__input {
    width: 100%;
    padding: var(--space-sm);
    background: transparent;
    border: 1px solid var(--color-gray-dark);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form__input:focus {
    outline: none;
    border-color: var(--color-gold);
}

.form__input::placeholder {
    color: var(--color-gray-dark);
}

textarea.form__input {
    resize: vertical;
    min-height: 100px;
}

select.form__input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    cursor: pointer;
}

.form__footer {
    text-align: center;
    margin-top: var(--space-lg);
}

.form__note {
    font-size: 0.75rem;
    margin-bottom: var(--space-md);
}

/* ─────────────────────────────────────────────────────────────────
   BUTTONS
   ───────────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    border: 1px solid var(--color-gold);
    color: var(--color-gold);
    background: transparent;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-gold);
    transform: translateY(100%);
    transition: transform var(--transition-medium);
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn:hover {
    color: var(--color-black);
}

.btn:hover::before {
    transform: translateY(0);
}

.btn--primary {
    background: var(--color-gold);
    color: var(--color-black);
}

.btn--primary::before {
    background: var(--color-gold-light);
    transform: translateY(0);
}

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

/* ─────────────────────────────────────────────────────────────────
   FOOTER
   ───────────────────────────────────────────────────────────────── */

.footer {
    padding: var(--space-xl) 0 var(--space-md);
    border-top: 1px solid var(--color-gray-dark);
}

.footer__grid {
    display: grid;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
    .footer__grid {
        grid-template-columns: 1fr 2fr;
    }
}

.footer__logo {
    font-family: var(--font-display);
    font-size: 2rem;
    letter-spacing: 0.1em;
    display: block;
}

.footer__tagline {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-gold);
    margin-top: var(--space-xs);
}

.footer__info {
    display: grid;
    gap: var(--space-md);
}

@media (min-width: 768px) {
    .footer__info {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer__block h4 {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-gold);
    margin-bottom: var(--space-sm);
}

.footer__block p,
.footer__block address {
    font-style: normal;
    font-size: 0.875rem;
    line-height: 1.8;
    color: var(--color-gray);
}

.footer__block a:hover {
    color: var(--color-gold);
}

.footer__bottom {
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-gray-dark);
    text-align: center;
}

.footer__bottom p {
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

/* ─────────────────────────────────────────────────────────────────
   ANIMATIONS
   ───────────────────────────────────────────────────────────────── */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scaleX(0);
    }
    to {
        opacity: 1;
        transform: scaleX(1);
    }
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 1;
        transform: scaleY(1);
    }
    50% {
        opacity: 0.5;
        transform: scaleY(0.8);
    }
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─────────────────────────────────────────────────────────────────
   UTILITIES
   ───────────────────────────────────────────────────────────────── */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Selection */
::selection {
    background: var(--color-gold);
    color: var(--color-black);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-black);
}

::-webkit-scrollbar-thumb {
    background: var(--color-gray-dark);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-gold);
}