/* ══════════════════════════════════════════════════════
   BLACK LOTUS — Design System & Styles
   ══════════════════════════════════════════════════════ */

/* ── Tokens ──────────────────────────────────────── */
:root {
    --black:     #0a0a0a;
    --dark:      #111111;
    --charcoal:  #1a1a1a;
    --graphite:  #222222;
    --slate:     #333333;
    --ash:       #555555;
    --muted:     #888888;
    --silver:    #aaaaaa;
    --light:     #cccccc;
    --cream:     #e8e4df;
    --white:     #f5f5f0;
    --amber:     #c9a96e;
    --amber-dim: #a07d42;
    --amber-glow: rgba(201, 169, 110, 0.15);

    --font-sans:  'Inter', -apple-system, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

    --space-xs:  0.5rem;
    --space-sm:  1rem;
    --space-md:  2rem;
    --space-lg:  4rem;
    --space-xl:  8rem;
    --space-2xl: 12rem;

    --container: 1100px;
}

/* ── Reset ───────────────────────────────────────── */
*, *::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: 300;
    color: var(--light);
    background: var(--black);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

::selection {
    background: var(--amber);
    color: var(--black);
}

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

/* ── Typography ──────────────────────────────────── */
.section__headline {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: clamp(1.8rem, 4vw, 3rem);
    color: var(--white);
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
}

/* ── Buttons ─────────────────────────────────────── */
.btn {
    display: inline-block;
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 1rem 2.5rem;
    border: 1px solid var(--amber-dim);
    color: var(--cream);
    background: transparent;
    cursor: pointer;
    transition: all 0.5s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--amber);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s var(--ease-out);
    z-index: -1;
}

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

.btn:hover::before {
    transform: scaleX(1);
}

.btn--full { width: 100%; text-align: center; }

/* ── Reveal Animation ────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
    transition-delay: var(--delay, 0s);
}

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

/* ══════════════════════════════════════════════════════
   SECTIONS
   ══════════════════════════════════════════════════════ */

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

/* ── 1. HERO ─────────────────────────────────────── */
.section--hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    animation: heroZoom 20s var(--ease-in-out) infinite alternate;
}

@keyframes heroZoom {
    from { transform: scale(1.05); }
    to   { transform: scale(1.15); }
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to bottom, rgba(10,10,10,0.4) 0%, rgba(10,10,10,0.2) 40%, rgba(10,10,10,0.7) 100%),
        linear-gradient(to right, rgba(10,10,10,0.6) 0%, transparent 50%);
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem var(--space-md);
    transition: all 0.5s var(--ease-out);
}

.nav.is-scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 1rem var(--space-md);
    border-bottom: 1px solid rgba(201, 169, 110, 0.1);
}

.nav__logo {
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 0.8rem;
    letter-spacing: 0.35em;
    color: var(--cream);
}

.nav__cta {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--amber);
    padding: 0.5rem 1.2rem;
    border: 1px solid rgba(201, 169, 110, 0.3);
    transition: all 0.4s var(--ease-out);
}

.nav__cta:hover {
    background: var(--amber);
    color: var(--black);
    border-color: var(--amber);
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 var(--space-md);
    animation: heroFadeIn 1.5s var(--ease-out) 0.3s both;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero__title {
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: clamp(2.5rem, 8vw, 5rem);
    letter-spacing: 0.4em;
    color: var(--white);
    margin-bottom: var(--space-md);
    line-height: 1;
}

.hero__subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: var(--cream);
    margin-bottom: var(--space-sm);
    font-weight: 400;
}

.hero__supporting {
    font-size: 0.9rem;
    color: var(--silver);
    margin-bottom: var(--space-lg);
    letter-spacing: 0.02em;
}

.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero__scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--amber-dim), transparent);
    animation: scrollPulse 2s var(--ease-in-out) infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50%      { opacity: 1;   transform: scaleY(1); }
}

/* ── 2. THE IDEA ─────────────────────────────────── */
.section--idea {
    padding: var(--space-2xl) 0;
    background: var(--black);
}

.idea__copy p {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    color: var(--silver);
    margin-bottom: var(--space-sm);
    max-width: 600px;
}

.idea__list-intro {
    color: var(--muted) !important;
    font-size: 0.9rem !important;
    margin-top: var(--space-md);
}

.idea__list {
    margin: var(--space-sm) 0 var(--space-md) 0;
    padding-left: 0;
}

.idea__list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.6rem;
    color: var(--cream);
    font-size: 1rem;
}

.idea__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.7em;
    width: 6px;
    height: 1px;
    background: var(--amber);
}

.idea__closing {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--graphite);
}

.idea__closing p {
    color: var(--cream) !important;
    font-size: 1.1rem !important;
}

.idea__accent {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1.3rem, 2.5vw, 1.6rem) !important;
    color: var(--amber) !important;
    margin-top: var(--space-xs);
}

/* ── 3. THE ENVIRONMENT ──────────────────────────── */
.section--environment {
    padding: var(--space-2xl) 0;
    background: var(--dark);
}

.env__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.env__card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--graphite);
    transition: border-color 0.5s var(--ease-out);
}

.env__card:hover {
    border-color: var(--amber-dim);
}

.env__card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.env__card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--ease-out);
    filter: brightness(0.7) saturate(0.8);
}

.env__card:hover .env__card-image img {
    transform: scale(1.05);
    filter: brightness(0.85) saturate(1);
}

.env__card-title {
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--amber);
    padding: var(--space-md) var(--space-md) var(--space-xs);
}

.env__card-desc {
    font-size: 0.95rem;
    color: var(--silver);
    padding: 0 var(--space-md) var(--space-md);
}

/* ── 4. WHO IT'S FOR ─────────────────────────────── */
.section--who {
    padding: var(--space-2xl) 0;
    background: var(--black);
}

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

.who__list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.who__list--yes li {
    color: var(--cream);
}

.who__list--yes li::before {
    content: '✦';
    position: absolute;
    left: 0;
    color: var(--amber);
    font-size: 0.6rem;
    top: 0.35em;
}

.who__no-label {
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: var(--space-md);
}

.who__list--no li {
    color: var(--ash);
}

.who__list--no li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--slate);
}

/* ── 5. THE EXPERIENCE ───────────────────────────── */
.section--experience {
    padding: var(--space-2xl) 0;
    overflow: hidden;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.experience__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.experience__bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.25) saturate(0.4);
}

.experience__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(10,10,10,0.85), rgba(10,10,10,0.5));
}

.section--experience .container {
    position: relative;
    z-index: 2;
}

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

.experience__lines p {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1.3rem, 3vw, 2rem);
    color: var(--cream);
    margin-bottom: var(--space-sm);
    opacity: 0.9;
}

.experience__anchor {
    font-size: 1.05rem;
    color: var(--silver);
    margin-bottom: var(--space-xs);
}

.experience__baseline {
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--amber);
}

/* ── 6. THE SPACE ────────────────────────────────── */
.section--space {
    padding: var(--space-2xl) 0 var(--space-xl);
    background: var(--dark);
}

.section--space .section__headline {
    text-align: center;
    margin-bottom: var(--space-xl);
    font-size: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: 0.05em;
    color: var(--muted);
    font-family: var(--font-sans);
    font-weight: 300;
    text-transform: uppercase;
}

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

.space__item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    cursor: default;
}

.space__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--ease-out), filter 0.8s var(--ease-out);
    filter: brightness(0.75) saturate(0.7);
}

.space__item:hover img {
    transform: scale(1.04);
    filter: brightness(0.9) saturate(0.9);
}

.space__caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-md);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--cream);
    background: linear-gradient(to top, rgba(10,10,10,0.7), transparent);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.5s var(--ease-out);
}

.space__item:hover .space__caption {
    opacity: 1;
    transform: translateY(0);
}

/* ── 7. ACCESS + 8. APPLICATION ──────────────────── */
.section--access {
    padding: var(--space-2xl) 0;
    background: var(--black);
}

.access__copy {
    max-width: 550px;
    margin-bottom: var(--space-xl);
}

.access__copy p {
    font-size: 1.05rem;
    color: var(--silver);
    margin-bottom: var(--space-sm);
}

/* ── Form ────────────────────────────────────────── */
.form {
    max-width: 550px;
}

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

.form__label {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: var(--space-xs);
}

.form__optional {
    color: var(--ash);
    text-transform: none;
    letter-spacing: normal;
}

.form__input {
    width: 100%;
    padding: 0.9rem 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 300;
    color: var(--cream);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--slate);
    outline: none;
    transition: border-color 0.4s var(--ease-out);
    -webkit-appearance: none;
    border-radius: 0;
}

.form__input:focus {
    border-bottom-color: var(--amber);
}

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

.form__textarea {
    resize: vertical;
    min-height: 80px;
    line-height: 1.6;
}

.form__input:invalid:not(:placeholder-shown):not(:focus) {
    border-bottom-color: #8b4444;
}

.form__success {
    max-width: 550px;
    text-align: center;
    padding: var(--space-xl) 0;
    animation: successFade 0.8s var(--ease-out) both;
}

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

.form__success-icon {
    font-size: 2rem;
    color: var(--amber);
    margin-bottom: var(--space-md);
}

.form__success p {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.15rem;
    color: var(--cream);
}

/* ── Footer ──────────────────────────────────────── */
.footer {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--graphite);
    background: var(--black);
}

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

.footer__mark {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--muted);
}

.footer__line {
    font-size: 0.8rem;
    color: var(--ash);
    font-style: italic;
}

/* ══════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .env__grid {
        grid-template-columns: 1fr;
    }

    .who__columns {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

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

    .hero__title {
        letter-spacing: 0.25em;
    }

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

    .section--idea,
    .section--environment,
    .section--who,
    .section--access,
    .section--space {
        padding: var(--space-xl) 0;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 2rem;
        letter-spacing: 0.2em;
    }

    .footer .container {
        flex-direction: column;
        gap: var(--space-xs);
        text-align: center;
    }
}

/* ── Smooth scrollbar ────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--slate); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--ash); }

/* ── Loading State ───────────────────────────────── */
.btn--loading {
    pointer-events: none;
    opacity: 0.6;
}

.btn--loading::after {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 1px solid var(--cream);
    border-top-color: transparent;
    border-radius: 50%;
    margin-left: 0.5rem;
    animation: spin 0.6s linear infinite;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}