/* ============================================================
   FOTIS ZAGAS — Photography Portfolio
   Vanilla CSS3  |  Minimalist Editorial Design
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --color-bg: #E7EAE5;
  --color-black: #000000;
  --color-white: #FFFFFF;
  --color-accent: #696969;
  --color-gray: #888888;
  --color-border: rgba(0, 0, 0, 0.1);

  --font-serif: 'Cormorant Garamond', 'Georgia', 'Times New Roman', serif;
  --font-sans: 'DM Sans', 'Helvetica Neue', 'Arial', sans-serif;

  --sidebar-width: 280px;
  --transition-base: 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-fast: 0.2s ease;
}


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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-black);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

/* Selection */
::selection {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 3px;
}

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

a {
  text-decoration: none;
  color: inherit;
}


/* ============================================================
   SIDEBAR — Fixed Left Navigation (Desktop)
   ============================================================ */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background-color: var(--color-bg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2.5rem 2rem;
  z-index: 100;
  border-right: 1px solid var(--color-border);
}

.sidebar__logo {
  display: block;
  width: 100%;
  max-width: 180px;
  transition: opacity var(--transition-fast);
}

.sidebar__logo:hover {
  opacity: 0.7;
}

.sidebar__logo img {
  width: 100%;
  height: auto;
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.sidebar__link {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-black);
  transition: color var(--transition-base);
  position: relative;
}

.sidebar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

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

.sidebar__link:hover::after {
  width: 100%;
}

.sidebar__footer {
  padding-top: 1rem;
}

.sidebar__social {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray);
  transition: color var(--transition-base);
}

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

/* Active page link */
.sidebar__link--active {
  color: var(--color-accent);
}

.sidebar__link--active::after {
  width: 100%;
}

.mobile-drawer__link--active {
  color: var(--color-accent);
}


/* ============================================================
   MOBILE HEADER & DRAWER
   ============================================================ */
.mobile-header {
  display: none; /* Shown only on mobile */
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background-color: var(--color-bg);
  z-index: 200;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-base),
              backdrop-filter var(--transition-base);
}

.mobile-header--scrolled {
  background-color: rgba(231, 234, 229, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.mobile-header__logo {
  display: block;
  height: 28px;
}

.mobile-header__logo img {
  height: 100%;
  width: auto;
}

/* Hamburger button */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 210;
}

.hamburger__line {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-black);
  transition: transform var(--transition-base),
              opacity var(--transition-fast);
  transform-origin: center;
}

/* Hamburger → X transformation */
.hamburger--active .hamburger__line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.hamburger--active .hamburger__line:nth-child(2) {
  opacity: 0;
}
.hamburger--active .hamburger__line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile drawer overlay */
.mobile-drawer {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg);
  z-index: 190;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base),
              visibility var(--transition-base);
}

.mobile-drawer--open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.mobile-drawer__link {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 300;
  color: var(--color-black);
  transition: color var(--transition-base);
  transform: translateY(20px);
  opacity: 0;
  transition: color var(--transition-base),
              transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1),
              opacity 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.mobile-drawer--open .mobile-drawer__link {
  transform: translateY(0);
  opacity: 1;
}

/* Stagger the link animations */
.mobile-drawer--open .mobile-drawer__link:nth-child(1) { transition-delay: 0.05s; }
.mobile-drawer--open .mobile-drawer__link:nth-child(2) { transition-delay: 0.1s; }
.mobile-drawer--open .mobile-drawer__link:nth-child(3) { transition-delay: 0.15s; }
.mobile-drawer--open .mobile-drawer__link:nth-child(4) { transition-delay: 0.2s; }

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


/* ============================================================
   MAIN CONTENT AREA
   ============================================================ */
.main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}


/* ============================================================
   SCROLL REVEAL ANIMATION
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.1, 0.25, 1),
              transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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


/* ============================================================
   HERO — Uniform Photo Grid
   ============================================================ */
.hero {
  padding: 2rem 2.5rem 6rem;
}

.hero-grid {
  columns: 3;
  column-gap: 12px;
}

.hero-grid__item {
  break-inside: avoid;
  margin-bottom: 12px;
  position: relative;
  overflow: hidden;
}

.hero-grid__item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* Hover: subtle scale + green accent overlay */
.hero-grid__item::after {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--color-accent);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.hero-grid__item:hover img {
  transform: scale(1.03);
}

.hero-grid__item:hover::after {
  opacity: 0.08;
}


/* ============================================================
   SHARED SECTION STYLES
   ============================================================ */
.section-heading {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-black);
}

.section-heading--light {
  color: var(--color-white);
}

.accent-line {
  width: 60px;
  height: 2px;
  background-color: var(--color-accent);
  margin: 1.5rem 0;
}


/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about {
  padding: 8rem 2.5rem;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  max-width: 1100px;
}

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

.about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.about__image:hover img {
  transform: scale(1.02);
}

.about__content {
  padding-top: 2rem;
}

.about__text {
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(0, 0, 0, 0.75);
  margin-bottom: 1.25rem;
  max-width: 500px;
}


/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 8rem 2.5rem;
}

.services__list {
  margin-top: 4rem;
  max-width: 900px;
}

.services__item {
  padding-bottom: 2.5rem;
}

.services__separator {
  width: 100%;
  height: 1px;
  background-color: rgba(255, 255, 255, 0.15);
  margin-bottom: 2rem;
}

.services__row {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 0.5rem 1.5rem;
  align-items: baseline;
}

.services__number {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  grid-row: 1 / 3;
  padding-top: 0.2rem;
}

.services__title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 300;
  color: var(--color-white);
  transition: color var(--transition-base);
  cursor: pointer;
}

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

.services--interactive .services__title::after {
  content: '↓';
  display: inline-block;
  margin-left: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.55em;
  font-weight: 300;
  vertical-align: middle;
  transition: transform 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.services--interactive .services__item--open .services__title::after {
  transform: rotate(180deg);
}

.services__desc {
  font-size: 0.9rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.55);
  max-width: 480px;
}


/* ============================================================
   SERVICES — Inverted state (click on services page)
   ============================================================ */
.services--interactive {
  transition: background-color 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* Smooth color transitions on text so the inversion animates */
.services--interactive .section-heading--light,
.services--interactive .services__title,
.services--interactive .services__number,
.services--interactive .services__desc {
  transition: color 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.services--interactive .services__separator {
  transition: background-color 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.services--interactive.services--inverted {
  background-color: var(--color-white);
}

.services--interactive.services--inverted .section-heading--light {
  color: var(--color-black);
}

.services--interactive.services--inverted .services__title {
  color: var(--color-black);
}

.services--interactive.services--inverted .services__item:hover .services__title {
  color: var(--color-accent);
}

.services--interactive.services--inverted .services__separator {
  background-color: rgba(0, 0, 0, 0.12);
}

.services--interactive.services--inverted .services__number {
  color: rgba(0, 0, 0, 0.35);
}

.services--interactive.services--inverted .services__desc {
  color: rgba(0, 0, 0, 0.55);
}


/* ============================================================
   SERVICE ACCORDION DROPDOWN
   ============================================================ */
.services__item {
  cursor: pointer;
}

.services__dropdown {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.55s cubic-bezier(0.25, 0.1, 0.25, 1),
              padding 0.55s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.services__item--open .services__dropdown {
  max-height: 480px;
  padding-bottom: 2.5rem;
}


/* ============================================================
   CAROUSEL
   ============================================================ */
.carousel {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding-top: 1.5rem;
}

.carousel__viewport {
  flex: 1;
  overflow: hidden;
}

.carousel__track {
  display: flex;
  transition: transform 0.45s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.carousel__slide {
  min-width: 100%;
  aspect-ratio: 16 / 9;
}

.carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.carousel__btn {
  background: none;
  border: 1px solid var(--color-black);
  color: var(--color-black);
  width: 36px;
  height: 36px;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.carousel__btn:hover {
  opacity: 0.5;
}

.carousel__slide {
  cursor: zoom-in;
}


/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 500;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s cubic-bezier(0.25, 0.1, 0.25, 1),
              visibility 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

.lightbox__stage {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  display: block;
  transition: opacity 0.25s ease;
}

.lightbox__img--fade {
  opacity: 0;
}

.lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 1.75rem;
  background: none;
  border: none;
  color: var(--color-black);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  transition: opacity var(--transition-fast);
  padding: 0;
}

.lightbox__close:hover {
  opacity: 0.6;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: 1px solid rgba(0, 0, 0, 0.35);
  color: var(--color-black);
  width: 44px;
  height: 44px;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast),
              opacity var(--transition-fast);
}

.lightbox__nav:hover {
  border-color: var(--color-black);
  opacity: 0.7;
}

.lightbox__nav--prev {
  left: 1.75rem;
}

.lightbox__nav--next {
  right: 1.75rem;
}


/* ============================================================
   PERSONAL WORK SECTION
   ============================================================ */
.personal-work {
  padding: 8rem 2.5rem;
}

.personal-work__header {
  margin-bottom: 3rem;
}

.personal-work__subtitle {
  font-size: 1rem;
  color: rgba(0, 0, 0, 0.6);
  max-width: 450px;
  margin-top: 1rem;
  line-height: 1.65;
}

.personal-work__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.personal-work__card {
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.personal-work__card:hover {
  border-color: var(--color-accent);
}

.personal-work__placeholder {
  aspect-ratio: 4 / 5;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.02);
  position: relative;
}

.personal-work__placeholder span {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 300;
  font-style: italic;
  color: rgba(0, 0, 0, 0.3);
  letter-spacing: 0.04em;
}


/* ============================================================
   CONTACT SECTION
   ============================================================ */

/* Full-height layout for the contact page */
.main--full-height {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main--full-height .contact--centered {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact {
  padding: 8rem 2.5rem;
  border-top: 1px solid var(--color-border);
}

/* Minimal centered variant */
.contact--centered {
  padding: 4rem 2.5rem;
  border-top: none;
  text-align: center;
}

.contact__blocks {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  align-items: center;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  max-width: 1100px;
}

.contact__right {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  padding-top: 1rem;
}

.contact__block {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.contact__label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.contact__value {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 300;
  color: var(--color-black);
  transition: color var(--transition-base);
}

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


/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 2.5rem;
}

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

.footer__copy {
  font-size: 0.8rem;
  color: var(--color-gray);
}

.footer__tagline {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gray);
}

/* Dark footer — used on pages with black background (Services) */
.footer--dark {
  background-color: var(--color-black);
  border-top-color: rgba(255, 255, 255, 0.1);
}

.footer--dark .footer__copy,
.footer--dark .footer__tagline {
  color: rgba(255, 255, 255, 0.4);
}


/* ============================================================
   RESPONSIVE — Tablet (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .hero {
    padding: 2rem 1.5rem 4rem;
  }

  .about__grid,
  .contact__grid {
    gap: 3rem;
  }

  .personal-work__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}


/* ============================================================
   RESPONSIVE — Small screens: hero switches to 2 columns
   ============================================================ */
@media (max-width: 600px) {
  .hero-grid {
    columns: 2;
    column-gap: 12px;
  }

  .hero-grid__item {
    margin-bottom: 12px;
  }
}


/* ============================================================
   RESPONSIVE — Mobile (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  /* Hide sidebar, show mobile header */
  .sidebar {
    display: none;
  }

  .mobile-header {
    display: flex;
  }

  .main {
    margin-left: 0;
    padding-top: 60px; /* Account for fixed mobile header */
  }

  /* Hero adjustments */
  .hero {
    padding: 1.5rem 1rem 4rem;
  }

  /* About */
  .about {
    padding: 5rem 1.25rem;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  /* Services */
  .services {
    padding: 5rem 1.25rem;
  }

  .services__row {
    grid-template-columns: 50px 1fr;
  }

  /* Personal Work */
  .personal-work {
    padding: 5rem 1.25rem;
  }

  .personal-work__grid {
    grid-template-columns: 1fr;
  }

  /* Contact */
  .contact {
    padding: 5rem 1.25rem;
  }

  .contact--centered {
    padding: 3rem 1.25rem;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  /* Footer */
  .footer {
    padding: 1.5rem 1.25rem;
  }

  .footer__inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}


/* ============================================================
   RESPONSIVE — Small Mobile (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {
  .section-heading {
    font-size: 2rem;
  }

  .services__title {
    font-size: 1.25rem;
  }

  .mobile-drawer__link {
    font-size: 1.6rem;
  }
}


/* ============================================================
   UTILITY — No scroll (when drawer is open)
   ============================================================ */
body.no-scroll {
  overflow: hidden;
}