/* ============================================
   DRY LEAVES OF NEEM TREES
   A poetry collection website
   Palette: Black, Gold, Teal
   ============================================ */

/* --- CSS Variables --- */
:root {
    --black: #0a0a0a;
    --black-light: #111111;
    --black-lighter: #1a1a1a;
    --black-card: #141414;
    --gold: #c9a84c;
    --gold-light: #d4b96a;
    --gold-dim: rgba(201, 168, 76, 0.15);
    --gold-glow: rgba(201, 168, 76, 0.3);
    --teal: #2a9d8f;
    --teal-light: #40b4a6;
    --teal-dim: rgba(42, 157, 143, 0.15);
    --teal-glow: rgba(42, 157, 143, 0.25);
    --white: #e8e6e1;
    --white-dim: #a8a6a1;
    --white-muted: #6b6965;
    --serif: 'Cormorant Garamond', 'Georgia', serif;
    --display: 'Playfair Display', 'Georgia', serif;
    --sans: 'Inter', 'Helvetica Neue', sans-serif;
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--black);
    color: var(--white);
    font-family: var(--serif);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

::selection {
    background: var(--gold-dim);
    color: var(--gold);
}

/* --- Container --- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ============================================
   LANDING PAGE
   ============================================ */
.landing {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--black);
    overflow: hidden;
}

.landing::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, var(--gold-dim) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, var(--teal-dim) 0%, transparent 50%);
    opacity: 0.5;
    pointer-events: none;
}

.landing-inner {
    text-align: center;
    position: relative;
    z-index: 2;
    animation: fadeInUp 1.2s ease-out;
}

.landing-subtitle {
    font-family: var(--sans);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--white-muted);
    margin-bottom: 2rem;
}

.landing-title {
    font-family: var(--display);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 0.5rem;
}

.title-line {
    display: block;
    font-size: clamp(2.5rem, 7vw, 5.5rem);
    color: var(--white);
    letter-spacing: 0.02em;
}

.title-of {
    display: block;
    font-family: var(--serif);
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 300;
    font-style: italic;
    color: var(--gold);
    margin: 0.3rem 0;
    letter-spacing: 0.15em;
}

.gold-line {
    width: 60px;
    height: 1px;
    background: var(--gold);
    margin: 1.5rem auto;
    opacity: 0.6;
}

.enter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 2.5rem;
    padding: 1rem 2.5rem;
    font-family: var(--sans);
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--gold);
    border: 1px solid var(--gold-dim);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.enter-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: -1;
}

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

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

.enter-btn svg {
    transition: transform var(--transition);
}

.enter-btn:hover svg {
    transform: translateX(4px);
}

.landing-bg-text {
    position: absolute;
    bottom: -2%;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--display);
    font-size: clamp(6rem, 18vw, 16rem);
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 1px rgba(201, 168, 76, 0.04);
    pointer-events: none;
    user-select: none;
    letter-spacing: 0.05em;
}

/* ============================================
   NAVIGATION
   ============================================ */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.25rem 0;
    transition: var(--transition);
    background: transparent;
}

.main-nav.scrolled {
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(201, 168, 76, 0.08);
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-family: var(--sans);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    color: var(--gold);
    text-transform: uppercase;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
    z-index: 101;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 1px;
    background: var(--gold);
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    font-family: var(--sans);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--white-dim);
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width var(--transition);
}

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

.nav-links a:hover::after {
    width: 100%;
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
    padding: 8rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-label {
    font-family: var(--sans);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--teal);
    display: block;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--white);
    letter-spacing: 0.02em;
}

.gold-accent {
    width: 40px;
    height: 2px;
    background: var(--gold);
    margin: 1.5rem auto 0;
}

/* ============================================
   CASE FILES GRID
   ============================================ */
.case-files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.case-file-card {
    display: block;
    background: var(--black-card);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.case-file-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--gold);
    transition: height var(--transition-slow);
}

.case-file-card::after {
    content: attr(data-index);
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-family: var(--sans);
    font-size: 0.65rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.08);
    letter-spacing: 0.1em;
}

.case-file-card:hover {
    border-color: rgba(201, 168, 76, 0.15);
    background: var(--black-lighter);
    transform: translateY(-2px);
}

.case-file-card:hover::before {
    height: 100%;
}

.case-number {
    font-family: var(--sans);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold);
    display: block;
    margin-bottom: 1rem;
}

.case-title {
    font-family: var(--display);
    font-size: 1.35rem;
    font-weight: 400;
    color: var(--white);
    line-height: 1.4;
    margin-bottom: 1.25rem;
    transition: color var(--transition);
}

.case-file-card:hover .case-title {
    color: var(--gold-light);
}

.case-tag {
    font-family: var(--sans);
    font-size: 0.6rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--teal);
    padding: 0.3rem 0.8rem;
    border: 1px solid var(--teal-dim);
    display: inline-block;
}

.epilogue-card {
    border-color: rgba(42, 157, 143, 0.1);
}

.epilogue-card::before {
    background: var(--teal);
}

.epilogue-card:hover {
    border-color: rgba(42, 157, 143, 0.25);
}

.epilogue-card:hover .case-title {
    color: var(--teal-light);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
    background: var(--black-light);
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.about-quote {
    font-family: var(--display);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--gold);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.about-text p {
    font-family: var(--serif);
    font-size: 1.15rem;
    color: var(--white-dim);
    margin-bottom: 1.5rem;
    line-height: 1.9;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.footer-inner {
    text-align: center;
}

.footer-title {
    font-family: var(--display);
    font-size: 1rem;
    font-weight: 400;
    color: var(--white-muted);
    display: block;
    margin-bottom: 0.5rem;
}

.footer-copyright {
    font-family: var(--sans);
    font-size: 0.7rem;
    color: var(--white-muted);
    letter-spacing: 0.15em;
    opacity: 0.5;
}

.footer-line {
    width: 30px;
    height: 1px;
    background: var(--gold);
    margin: 1.5rem auto 0;
    opacity: 0.3;
}

/* ============================================
   POEM PAGE LAYOUT
   ============================================ */
.poem-page {
    min-height: 100vh;
    background: var(--black);
}

.poem-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.25rem 0;
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(201, 168, 76, 0.08);
}

.poem-nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.back-link {
    font-family: var(--sans);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--white-dim);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color var(--transition);
}

.back-link:hover {
    color: var(--gold);
}

.poem-nav-title {
    font-family: var(--sans);
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--gold);
}

/* --- Poem Header --- */
.poem-header {
    padding: 10rem 0 4rem;
    text-align: center;
    position: relative;
}

.poem-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 1px;
    background: var(--gold);
    opacity: 0.4;
}

.poem-case-label {
    font-family: var(--sans);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--teal);
    margin-bottom: 1.5rem;
    display: block;
}

.poem-main-title {
    font-family: var(--display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: 0.02em;
}

.poem-epigraph {
    font-family: var(--serif);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--white-muted);
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.8;
}

/* --- Audio Player --- */
.audio-player {
    max-width: 500px;
    margin: 3rem auto 0;
    padding: 1.5rem 2rem;
    background: var(--black-card);
    border: 1px solid rgba(201, 168, 76, 0.1);
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.audio-player.hidden-player {
    display: none;
}

.play-btn {
    width: 44px;
    height: 44px;
    border: 1px solid var(--gold-dim);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
    color: var(--gold);
}

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

.audio-info {
    flex: 1;
    min-width: 0;
}

.audio-label {
    font-family: var(--sans);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--white-muted);
    display: block;
    margin-bottom: 0.5rem;
}

.audio-progress {
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 1px;
    overflow: hidden;
    cursor: pointer;
}

.audio-progress-fill {
    width: 0%;
    height: 100%;
    background: var(--gold);
    border-radius: 1px;
    transition: width 0.1s linear;
}

.audio-time {
    font-family: var(--sans);
    font-size: 0.65rem;
    color: var(--white-muted);
    margin-top: 0.4rem;
    display: block;
}

/* --- Poem Body --- */
.poem-body {
    max-width: 680px;
    margin: 0 auto;
    padding: 4rem 2rem 6rem;
}

.poem-text {
    font-family: var(--serif);
    font-size: 1.25rem;
    line-height: 2;
    color: var(--white);
}

.poem-text p {
    margin-bottom: 2rem;
}

.poem-text .stanza {
    margin-bottom: 2.5rem;
}

.poem-text .indent {
    padding-left: 2rem;
}

.poem-text .dialogue {
    color: var(--gold-light);
    font-style: italic;
}

.poem-text .emphasis {
    color: var(--teal-light);
    font-weight: 500;
}

.poem-text .break-line {
    color: var(--gold);
    font-weight: 600;
    font-size: 1.35rem;
    display: block;
    margin: 2rem 0;
    text-align: center;
}

.poem-text .whisper {
    font-size: 1rem;
    color: var(--white-muted);
    font-style: italic;
}

.poem-text .shout {
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.poem-text .raw {
    font-family: var(--sans);
    font-weight: 500;
    font-size: 1.1rem;
    letter-spacing: 0.02em;
}

/* --- Poem Navigation --- */
.poem-pagination {
    max-width: 680px;
    margin: 0 auto;
    padding: 0 2rem 6rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 3rem;
}

.poem-prev,
.poem-next {
    font-family: var(--sans);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--white-dim);
    transition: color var(--transition);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.poem-prev:hover,
.poem-next:hover {
    color: var(--gold);
}

.poem-next {
    text-align: right;
    margin-left: auto;
}

.pag-label {
    font-size: 0.6rem;
    color: var(--white-muted);
    display: block;
}

.pag-title {
    font-family: var(--display);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0;
    text-transform: none;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

.hidden {
    display: none;
}

/* Landing fade-out */
.landing.fade-out {
    opacity: 0;
    transition: opacity 0.6s ease-out;
    pointer-events: none;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background: var(--black-light);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem;
        gap: 2rem;
        transition: right var(--transition);
        border-left: 1px solid rgba(201, 168, 76, 0.08);
    }

    .nav-links.open {
        right: 0;
    }

    .case-files-grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 5rem 0;
    }

    .poem-header {
        padding: 8rem 0 3rem;
    }

    .poem-body {
        padding: 3rem 1.5rem 4rem;
    }

    .poem-text {
        font-size: 1.1rem;
        line-height: 1.9;
    }

    .audio-player {
        margin: 2rem 1.5rem 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.25rem;
    }

    .case-file-card {
        padding: 2rem 1.5rem;
    }

    .poem-text {
        font-size: 1.05rem;
    }
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(201, 168, 76, 0.2);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(201, 168, 76, 0.4);
}