/* =====================================================
   PORTFOLIO WALTER MARITATI - Design System
   Stile: Cool (Toni freddi, atmosfera serena)
   ===================================================== */

/* ----- Google Fonts ----- */
@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,700;1,400&family=Montserrat:wght@400;500;700&family=Raleway:wght@300;400;500;700&display=swap');

/* ----- CSS Variables ----- */
:root {
  /* Palette - Cool Blues */
  --color-bg: #f0f5fa;
  --color-bg-alt: #e0ebf5;
  --color-bg-dark: #1a3a5c;
  --color-accent: #2d7dd2;
  --color-accent-light: #5ba4e5;
  --color-text: #0a0a0a;
  --color-text-light: #3d3d3d;
  --color-text-inverse: #ffffff;
  --color-border: rgba(45, 125, 210, 0.15);

  /* Typography */
  --font-display: 'Montserrat', sans-serif;
  --font-nav: 'Raleway', sans-serif;
  --font-body: 'Lora', Georgia, serif;

  /* Sizes */
  --size-xs: 0.75rem;
  --size-sm: 0.875rem;
  --size-base: 1rem;
  --size-lg: 1.125rem;
  --size-xl: 1.25rem;
  --size-2xl: 1.5rem;
  --size-3xl: 2rem;
  --size-4xl: 2.5rem;
  --size-5xl: 3.5rem;
  --size-6xl: 4.5rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;

  /* Layout */
  --max-width: 1400px;
  --header-height: 80px;
}

/* ----- 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: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  text-shadow: 0 0 3px rgb(255, 255, 255, .7);
  font-weight: bolder;
}

body > .footer {
  margin-top: auto;
}

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;
}

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

h1 {
  font-size: var(--size-4xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--size-3xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--size-2xl);
}

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

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

.font-display {
  font-family: var(--font-display);
}

.italic {
  font-style: italic;
}

/* ----- Layout Utilities ----- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-24) 0;
}

.section--compact {
  padding: var(--space-16) 0;
}

/* ----- Header ----- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  border-bottom: 1px solid var(--color-bg-dark);
  z-index: 1000;
  transition: transform var(--transition-base);
}

.header--hidden {
  transform: translateY(-100%);
}

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

.header__logo {
  font-family: var(--font-display);
  font-size: var(--size-xl);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.header__nav {
  display: none;
}

.header__nav-list {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}

.header__nav-link {
  font-family: var(--font-nav);
  font-size: var(--size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

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

.header__menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.header__menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-inverse);
  transition: all var(--transition-fast);
}

/* ----- Mobile Menu ----- */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 80%;
  max-width: 300px;
  background: var(--color-bg);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 100px var(--space-6) var(--space-6);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  box-shadow: 5px 0 25px rgba(0, 0, 0, 0.1);
}

.mobile-menu--open {
  transform: translateX(0);
}

.mobile-menu__list {
  list-style: none;
  text-align: left;
  width: 100%;
}

.mobile-menu__link {
  display: block;
  font-family: var(--font-display);
  font-size: var(--size-2xl);
  padding: var(--space-3) 0;
  transition: color var(--transition-fast);
}

.mobile-menu__link:hover {
  color: var(--color-accent);
}

.mobile-menu__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  font-size: var(--size-3xl);
  color: var(--color-text);
}

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-dark);
  overflow: hidden;
}

.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.hero__slide {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero__slide--active {
  opacity: 1;
}

.hero__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}

.hero__content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: var(--color-text-inverse);
  padding: var(--space-8);
}

.hero__title {
  font-size: var(--size-4xl);
  font-weight: 400;
  margin-bottom: var(--space-4);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s ease 0.3s forwards;
}

.hero__tagline {
  font-family: var(--font-display);
  font-size: var(--size-lg);
  font-style: italic;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s ease 0.6s forwards;
}

.hero__indicators {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-3);
  z-index: 10;
}

.hero__indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hero__indicator--active {
  background: var(--color-text-inverse);
  transform: scale(1.2);
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-12);
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  color: var(--color-text-inverse);
  font-size: var(--size-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeIn 1s ease 1s forwards;
}

.hero__scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.5);
  margin: var(--space-4) auto 0;
  animation: scrollLine 2s ease infinite;
}

/* ----- Hero Index (Quote over painting) ----- */
.hero--index {
  min-height: auto;
  align-items: stretch;
  flex: 1 0 auto;
}

.hero--index .hero__background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.hero--index .hero__slide img {
  filter: brightness(0.85);
}

.hero__quote {
  position: relative;
  z-index: 10;
  width: 100%;
  padding: calc(var(--header-height) + var(--space-8)) var(--space-8) var(--space-8);
  background: none;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--size-lg);
  font-weight: 500;
  line-height: 1.8;
}

.hero__quote p {
  margin-bottom: var(--space-6);
}

.hero__quote-author {
  text-align: right;
  font-family: var(--font-display);
  font-size: var(--size-xl);
  font-style: italic;
  font-weight: 400;
  color: var(--color-text);
  margin-top: var(--space-6);
  margin-bottom: 0 !important;
  margin-right: 35%;
}

/* ----- Gallery Grid ----- */
.gallery {
  padding-top: calc(var(--header-height) + var(--space-12));
}

.gallery__filters {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.gallery__filter {
  font-size: var(--size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-2) var(--space-4);
  color: var(--color-text-light);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.gallery__filter:hover,
.gallery__filter--active {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

.gallery__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.gallery__item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  background-color: rgba(0, 0, 0, 0.03);
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.gallery__item-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-6);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  color: var(--color-text-inverse);
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-base);
}

.gallery__item:hover .gallery__item-overlay {
  opacity: 1;
  transform: translateY(0);
}

.gallery__item-title {
  font-family: var(--font-display);
  font-size: var(--size-lg);
}

.gallery__item-category {
  font-size: var(--size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.8;
}

/* ----- Lightbox ----- */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.lightbox--open {
  opacity: 1;
  visibility: visible;
}

.lightbox__content {
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox__content img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
}

.lightbox__caption {
  text-align: center;
  color: var(--color-text-inverse);
  padding: var(--space-4);
  font-family: var(--font-display);
  font-size: var(--size-lg);
}

.lightbox__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  color: var(--color-text-inverse);
  font-size: var(--size-3xl);
  transition: opacity var(--transition-fast);
}

.lightbox__close:hover {
  opacity: 0.7;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-inverse);
  font-size: var(--size-3xl);
  padding: var(--space-4);
  transition: opacity var(--transition-fast);
}

.lightbox__nav:hover {
  opacity: 0.7;
}

.lightbox__nav--prev {
  left: var(--space-4);
}

.lightbox__nav--next {
  right: var(--space-4);
}

/* ----- Biography Page ----- */
.bio {
  padding-top: calc(var(--header-height) + var(--space-16));
}

.bio__hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.bio__image {
  aspect-ratio: 3/4;
  overflow: hidden;
}

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

.bio__content h1 {
  margin-bottom: var(--space-8);
}

.bio__text {
  font-size: var(--size-lg);
  line-height: 1.8;
  color: var(--color-text-light);
}

.bio__text p {
  margin-bottom: var(--space-6);
}

.bio__text strong {
  color: var(--color-text);
  font-weight: 500;
}

/* ----- Critica Page ----- */
.critica {
  padding-top: calc(var(--header-height) + var(--space-16));
}

.critica__quote {
  max-width: 900px;
  margin: 0 auto var(--space-16);
  text-align: center;
}

.critica__quote-text {
  font-family: var(--font-display);
  font-size: var(--size-2xl);
  font-style: italic;
  line-height: 1.6;
  color: var(--color-text);
  position: relative;
}

.critica__quote-text::before {
  content: '"';
  font-size: var(--size-6xl);
  color: var(--color-accent);
  opacity: 0.3;
  position: absolute;
  top: -var(--space-8);
  left: -var(--space-8);
  font-family: var(--font-display);
}

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

.critica__content p {
  font-size: var(--size-lg);
  line-height: 1.8;
  margin-bottom: var(--space-6);
  color: var(--color-text-light);
}

/* ----- Contact Page ----- */
.contact {
  padding-top: calc(var(--header-height) + var(--space-16));
  min-height: 100vh;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

.contact__info h1 {
  margin-bottom: var(--space-8);
}

.contact__item {
  margin-bottom: var(--space-6);
}

.contact__label {
  font-size: var(--size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
  margin-bottom: var(--space-2);
}

.contact__value {
  font-family: var(--font-display);
  font-size: var(--size-2xl);
}

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

/* ----- Footer ----- */
.footer {
  padding: var(--space-12) 0;
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  border-top: none;
}

.footer__inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  text-align: center;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: var(--size-lg);
}

.footer__copy {
  font-size: var(--size-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* ----- Animations ----- */
@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@keyframes scrollLine {

  0%,
  100% {
    opacity: 0.5;
    transform: scaleY(0.5);
    transform-origin: top;
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

/* Scroll reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

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

/* ----- Media Queries ----- */
@media (min-width: 768px) {
  .gallery__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  h1 {
    font-size: var(--size-5xl);
  }

  .header__nav {
    display: block;
  }

  .header__menu-btn {
    display: none;
  }

  .hero__title {
    font-size: var(--size-5xl);
  }

  .bio__hero {
    grid-template-columns: 1fr 1.5fr;
    align-items: start;
  }

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

@media (min-width: 1024px) {
  .gallery__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero__title {
    font-size: var(--size-6xl);
  }
}