/* ============================================================
   MELIKA HAGHIGHAT — LUXURY PORTFOLIO
   Designer: Senior Front-End  |  Aesthetic: 90s CK Editorial
   ============================================================ */

/* ============================================================
   0. CUSTOM PROPERTIES
   ============================================================ */
:root {
    /* Colors */
    --color-bg:        #FFFFFF;
    --color-surface:   #ECECEC;
    --color-ink:       #000000;
    --color-mid:       #555555;
    --color-subtle:    #999999;
    --color-hairline:  #D4D4D4;
    --color-white:     #F7F7F7;

    /* Typography */
    --font-serif:      'Cormorant Garamond', 'Times New Roman', serif;
    --font-sans:       'Jost', 'Helvetica Neue', Arial, sans-serif;

    /* Spacing scale */
    --space-sm:  1rem;
    --space-md:  2rem;
    --space-lg:  3rem;
    --space-xl:  5rem;
    --space-2xl: 7rem;

    /* Motion */
    --ease-out:  cubic-bezier(0.22, 1, 0.36, 1);
    --ease-in:   cubic-bezier(0.64, 0, 0.78, 0);
    --duration:  0.45s;

    /* Layout */
    --max-width: 1280px;
    --gutter:    clamp(1.5rem, 5vw, 5rem);
}


/* ============================================================
   1. RESET & BASE
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

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

body.body--menu-open {
    overflow: hidden;
}

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

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

ul { list-style: none; }

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


/* ============================================================
   2. UTILITY / GLOBAL
   ============================================================ */
.section-label {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.625rem;
    font-weight: 400;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-mid);
    margin-bottom: 1.5rem;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-ink);
    position: relative;
    padding-bottom: 3px;
}

.text-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-ink);
    transform: scaleX(1);
    transform-origin: left;
    transition: transform var(--duration) var(--ease-out);
}

.text-link:hover::after {
    transform: scaleX(0);
    transform-origin: right;
}


/* ============================================================
   3. SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}

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

.reveal--delay-1 { transition-delay: 0.12s; }
.reveal--delay-2 { transition-delay: 0.24s; }
.reveal--delay-3 { transition-delay: 0.36s; }

/* Hero load-in animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.9s var(--ease-out) forwards;
}

.fade-in--delay-1 { animation-delay: 0.3s; }
.fade-in--delay-2 { animation-delay: 0.55s; }
.fade-in--delay-3 { animation-delay: 0.75s; }
.fade-in--delay-4 { animation-delay: 0.95s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* ============================================================
   4. NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 2rem var(--gutter);
    transition: background-color var(--duration) var(--ease-out),
    padding var(--duration) var(--ease-out),
    backdrop-filter var(--duration) var(--ease-out);
}

.navbar--scrolled {
    background-color: rgba(250, 250, 248, 0.88);
    backdrop-filter: blur(14px) saturate(120%);
    -webkit-backdrop-filter: blur(14px) saturate(120%);
    padding-top: 1.1rem;
    padding-bottom: 1.1rem;
    border-bottom: 1px solid var(--color-hairline);
}

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

.navbar__logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--color-ink);
    flex-shrink: 0;
}

.navbar__logo-img {
    height: 36px;
    width: auto;
    display: block;
    object-fit: contain;
}

.navbar__nav {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.navbar__link {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-ink);
    position: relative;
    padding-bottom: 2px;
}

.navbar__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-ink);
    transition: width var(--duration) var(--ease-out);
}

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

/* Burger button */
.navbar__burger {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 24px;
    padding: 4px 0;
    z-index: 110;
}

.navbar__burger span {
    display: block;
    width: 100%;
    height: 1px;
    background: var(--color-ink);
    transition: transform var(--duration) var(--ease-out),
    opacity var(--duration) var(--ease-out);
    transform-origin: center;
}

.navbar__burger--open span:first-child {
    transform: translateY(3.5px) rotate(45deg);
}

.navbar__burger--open span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
}

/* Mobile menu */
.navbar__mobile {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    z-index: 99;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    /* Always display:flex — use opacity + visibility for the transition */
    display: flex;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--duration) var(--ease-out),
    visibility var(--duration) var(--ease-out);
}

.navbar__mobile.navbar__mobile--open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.navbar__mobile-link {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 300;
    letter-spacing: 0.04em;
    color: var(--color-ink);
    transition: color var(--duration) var(--ease-out);
}

.navbar__mobile-link:hover {
    color: var(--color-mid);
}


/* ============================================================
   5. HERO
   ============================================================ */
.hero {
    min-height: 100svh;
    display: grid;
    align-items: end;
    padding: 0 var(--gutter) var(--space-lg);
    position: relative;
    background-color: var(--color-bg);
    overflow: hidden;
}

/* Subtle grain overlay */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    background-size: 256px;
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
}

/* Vertical rule decorative line */
.hero::after {
    content: '';
    position: absolute;
    top: 12%;
    right: var(--gutter);
    width: 1px;
    height: 30vh;
    background: linear-gradient(to bottom, transparent, var(--color-hairline), transparent);
    opacity: 0.7;
}

.hero__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero__meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.75rem;
}

.hero__tag {
    font-family: var(--font-sans);
    font-size: 0.6rem;
    font-weight: 400;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--color-mid);
    white-space: nowrap;
}

.hero__line {
    display: block;
    flex: 1;
    max-width: 12rem;
    height: 1px;
    background: var(--color-hairline);
}

.hero__headline {
    font-family: var(--font-serif);
    font-weight: 300;
    line-height: 0.88;
    letter-spacing: -0.01em;
    margin-bottom: 2rem;
}

.hero__headline-top {
    display: block;
    font-size: clamp(5rem, 15vw, 14rem);
    color: var(--color-ink);
}

.hero__headline-mid {
    display: block;
    font-size: clamp(5rem, 15vw, 14rem);
    font-style: italic;
    font-weight: 300;
    color: var(--color-ink);
    letter-spacing: 0.02em;
    padding-left: clamp(3rem, 8vw, 10rem);
}

.hero__subtitle {
    font-family: var(--font-sans);
    font-size: clamp(0.8rem, 1.2vw, 0.95rem);
    font-weight: 300;
    letter-spacing: 0.04em;
    color: var(--color-mid);
    line-height: 1.9;
    max-width: 30rem;
}

/* Scroll indicator */
.hero__scroll-indicator {
    position: absolute;
    bottom: var(--space-md);
    right: var(--gutter);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    z-index: 1;
}

.hero__scroll-line {
    display: block;
    width: 1px;
    height: 3.5rem;
    background: var(--color-hairline);
    position: relative;
    overflow: hidden;
}

.hero__scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-mid);
    animation: scrollDown 2s ease-in-out infinite 1.5s;
}

@keyframes scrollDown {
    0%   { top: -100%; }
    50%  { top: 0; }
    100% { top: 100%; }
}

.hero__scroll-text {
    font-family: var(--font-sans);
    font-size: 0.55rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-subtle);
    writing-mode: vertical-lr;
    text-orientation: mixed;
}


/* ============================================================
   6. FEATURED WORK
   ============================================================ */
.work {
    padding: var(--space-2xl) var(--gutter) var(--space-2xl);
    background-color: var(--color-bg);
}

.work__header {
    max-width: var(--max-width);
    margin: 0 auto var(--space-lg);
    display: flex;
    flex-direction: column;
}

.work__title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300;
    line-height: 1.1;
    letter-spacing: 0.01em;
}

.work__title em {
    font-style: italic;
    color: var(--color-mid);
}

/* Asymmetric editorial grid */
.work__grid {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    grid-template-rows: auto auto;
    gap: 2px;
}

.work__item--large   { grid-column: 1; grid-row: 1; }
.work__item--portrait { grid-column: 2; grid-row: 1; }
.work__item--wide    { grid-column: 1; grid-row: 2; }
.work__item--square  { grid-column: 2; grid-row: 2; }

.work__item {
    position: relative;
    background: var(--color-ink);
}

.work__item-link {
    display: block;
}

.work__img-wrap {
    position: relative;
    overflow: hidden;
}

.work__item--large   .work__img-wrap { aspect-ratio: 4/3; }
.work__item--portrait .work__img-wrap { aspect-ratio: 3/4; }
.work__item--wide    .work__img-wrap { aspect-ratio: 16/9; }
.work__item--square  .work__img-wrap { aspect-ratio: 1/1; }

.work__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.75s var(--ease-out),
    filter 0.75s var(--ease-out);
    will-change: transform;
}

.work__item-link:hover .work__img {
    transform: scale(1.04);
    filter: brightness(0.88);
}

/* Overlay */
.work__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    background: linear-gradient(to top, rgba(12,12,11,0.45) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--duration) var(--ease-out);
}

.work__item-link:hover .work__overlay {
    opacity: 1;
}

.work__overlay-text {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-white);
    transform: translateY(6px);
    transition: transform var(--duration) var(--ease-out);
}

.work__item-link:hover .work__overlay-text {
    transform: translateY(0);
}

/* Item info */
.work__item-info {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    background: var(--color-bg);
    padding: 1.1rem var(--space-sm);
}

.work__category {
    font-family: var(--font-sans);
    font-size: 0.575rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-subtle);
}

.work__name {
    font-family: var(--font-serif);
    font-size: clamp(1.1rem, 2vw, 1.6rem);
    font-weight: 400;
    letter-spacing: 0.06em;
    color: var(--color-ink);
}

.work__footer {
    max-width: var(--max-width);
    margin: var(--space-lg) auto 0;
    display: flex;
    justify-content: flex-end;
}


/* ============================================================
   7. FOOTER
   ============================================================ */
.footer {
    padding: 2rem var(--gutter);
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-hairline);
}

.footer__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer__copy {
    font-family: var(--font-sans);
    font-size: 0.575rem;
    font-weight: 300;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-subtle);
}


/* ============================================================
   8. RESPONSIVE — TABLET (max-width: 1024px)
   ============================================================ */
@media (max-width: 1024px) {

    :root {
        --space-xl:  4rem;
        --space-2xl: 6rem;
    }

    .work__grid {
        grid-template-columns: 1fr 1fr;
        gap: 2px;
    }

    .work__item--large  { grid-column: 1 / -1; }
    .work__item--large .work__img-wrap { aspect-ratio: 16/9; }

    .work__item--portrait { grid-column: 1; grid-row: 2; }
    .work__item--portrait .work__img-wrap { aspect-ratio: 1/1; }

    .work__item--wide  { grid-column: 2; grid-row: 2; }
    .work__item--wide .work__img-wrap { aspect-ratio: 1/1; }

    .work__item--square { grid-column: 1 / -1; grid-row: 3; }
    .work__item--square .work__img-wrap { aspect-ratio: 16/7; }
}


/* ============================================================
   9. RESPONSIVE — MOBILE (max-width: 768px)
   ============================================================ */
@media (max-width: 768px) {

    :root {
        --space-xl:  3rem;
        --space-2xl: 5rem;
        --gutter:    1.5rem;
    }

    .navbar {
        padding: 1.5rem var(--gutter);
    }

    /* Scale logo image down on mobile */
    .navbar__logo-img {
        height: 20px;
    }

    .navbar__nav {
        display: none;
    }

    .navbar__burger {
        display: flex;
    }

    /* navbar__mobile is always display:flex — shown/hidden via opacity + visibility */

    .hero {
        align-items: center;
        padding-top: 3rem;
        padding-bottom: var(--space-md);
    }

    .hero::after {
        display: none;
    }

    /* Reduce headline size so both words fit comfortably on screen */
    .hero__headline-top,
    .hero__headline-mid {
        font-size: clamp(3.5rem, 18vw, 7rem);
    }

    .hero__headline-mid {
        padding-left: clamp(1.5rem, 5vw, 4rem);
    }

    .hero__scroll-indicator {
        display: none;
    }

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

    .work__item--large,
    .work__item--portrait,
    .work__item--wide,
    .work__item--square {
        grid-column: 1;
        grid-row: auto;
    }

    .work__item--large   .work__img-wrap,
    .work__item--portrait .work__img-wrap,
    .work__item--wide    .work__img-wrap,
    .work__item--square  .work__img-wrap {
        aspect-ratio: 4/3;
    }

    .footer__inner {
        justify-content: flex-start;
    }
}


/* ============================================================
   10. RESPONSIVE — SMALL MOBILE (max-width: 480px)
   ============================================================ */
@media (max-width: 480px) {

    /* Hide logo image at very small sizes to save navbar space */
    .navbar__logo-img {
        display: none;
    }

    .hero__headline-top,
    .hero__headline-mid {
        font-size: clamp(3rem, 16vw, 5rem);
    }

    .hero__headline-mid {
        padding-left: 1.25rem;
    }
}


/* ============================================================
   11. REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }

    .fade-in {
        opacity: 1;
        transform: none;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}