/* ============================================
   胡叨叨播客 · 主站样式
   带你了解世界中的一个小角落
   ============================================ */

:root {
    --black: #0d0d0d;
    --ink: #1a1a1a;
    --charcoal: #2c2c2c;
    --grey-dark: #4a4a4a;
    --grey: #888;
    --grey-light: #ccc;
    --warm-white: #fafaf8;
    --off-white: #f5f5f2;
    --paper: #eeede8;
    --accent: #1a1a1a;
    /* pure black as accent — match logo */
    --gold: #b8960c;
    --gold-light: #d4a820;

    --font-serif: 'Noto Serif SC', 'SimSun', Georgia, serif;
    --font-sans: 'Noto Sans SC', 'PingFang SC', sans-serif;
    --font-eng: 'IM Fell English', Georgia, serif;

    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background: var(--warm-white);
    color: var(--ink);
    line-height: 1.8;
    overflow-x: hidden;
}

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

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

::-webkit-scrollbar {
    width: 4px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--grey);
    border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--ink);
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.section {
    padding: 100px 0;
}

.section-dark {
    background: var(--ink);
    color: var(--warm-white);
}

/* ===== SECTION HEADER ===== */
.section-header {
    margin-bottom: 70px;
}

.section-header.center {
    text-align: center;
}

.section-eyebrow {
    display: inline-block;
    font-size: 0.72rem;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--grey);
    margin-bottom: 14px;
    font-family: var(--font-sans);
    font-weight: 400;
}

.section-eyebrow.light {
    color: rgba(255, 255, 255, 0.4);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 700;
    color: var(--ink);
    line-height: 1.3;
    margin-bottom: 18px;
}

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

.section-sub {
    font-size: 1rem;
    color: var(--grey-dark);
    max-width: 480px;
    line-height: 1.9;
}

/* ===== NAVIGATION ===== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 50px;
    transition: var(--transition);
}

#navbar.scrolled {
    background: rgba(250, 250, 248, 0.95);
    backdrop-filter: blur(20px);
    padding: 14px 50px;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo-img {
    height: 36px;
    width: auto;
    opacity: 0.9;
    transition: var(--transition);
}

#navbar.scrolled .nav-logo-img {
    filter: none;
}

.nav-logo-text {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--warm-white);
    letter-spacing: 0.05em;
    transition: var(--transition);
}

#navbar.scrolled .nav-logo-text {
    color: var(--ink);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    font-size: 0.88rem;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.85);
    position: relative;
    padding-bottom: 3px;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: white;
}

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

#navbar.scrolled .nav-links a {
    color: var(--grey-dark);
}

#navbar.scrolled .nav-links a:hover {
    color: var(--ink);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: white;
    transition: var(--transition);
}

#navbar.scrolled .nav-toggle span {
    background: var(--ink);
}

/* ===== HERO SECTION ===== */
#hero {
    min-height: 100vh;
    background: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-bg-wrap {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

/* Animated ink drop circles */
.hero-ink-drop {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
    animation: inkFloat 12s ease-in-out infinite;
}

#inkDrop1 {
    width: 600px;
    height: 600px;
    top: -100px;
    right: -100px;
    animation-duration: 15s;
}

#inkDrop2 {
    width: 400px;
    height: 400px;
    bottom: -50px;
    left: -80px;
    animation-duration: 18s;
    animation-delay: -6s;
}

#inkDrop3 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 40%;
    animation-duration: 20s;
    animation-delay: -10s;
}

@keyframes inkFloat {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -20px) scale(1.05);
    }

    66% {
        transform: translate(-20px, 15px) scale(0.97);
    }
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 80px;
    align-items: center;
    max-width: 1100px;
    width: 100%;
    padding: 0 50px;
    margin: 0 auto;
}

.hero-logo-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo {
    max-width: 280px;
    width: 100%;
    filter: invert(1) brightness(1.1);
    opacity: 0.9;
    animation: logoPulse 4s ease-in-out infinite;
    transition: var(--transition);
}

.hero-logo:hover {
    opacity: 1;
    transform: scale(1.02);
}

@keyframes logoPulse {

    0%,
    100% {
        filter: invert(1) brightness(1.1);
    }

    50% {
        filter: invert(1) brightness(1.25);
    }
}

.hero-text {
    color: white;
    animation: heroFadeIn 1s ease-out 0.3s both;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

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

.hero-main-title {
    font-family: var(--font-serif);
    font-size: clamp(3.5rem, 6vw, 6rem);
    font-weight: 900;
    color: white;
    line-height: 1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.title-dao {
    color: rgba(255, 255, 255, 0.5);
}

.hero-tagline {
    font-family: var(--font-serif);
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.1em;
    margin-bottom: 20px;
    line-height: 1.6;
}

.hero-tagline em {
    color: rgba(255, 255, 255, 0.95);
    font-style: normal;
    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
    padding-bottom: 1px;
}

.hero-desc {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.9;
    margin-bottom: 40px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 32px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 2px;
}

.btn-primary {
    background: white;
    color: var(--black);
}

.btn-primary:hover {
    background: var(--paper);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.15);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.05);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-dot {
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    50% {
        transform: translateY(8px);
        opacity: 0.8;
    }
}

/* ===== SHOWS SECTION ===== */
#shows {
    background: var(--off-white);
}

.shows-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.show-card {
    background: white;
    border-radius: 6px;
    overflow: hidden;
    transition: var(--transition-slow);
    display: flex;
    flex-direction: column;
    border: 1px solid transparent;
    position: relative;
}

.show-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.12);
    border-color: rgba(0, 0, 0, 0.08);
}

.show-active {
    cursor: pointer;
}

.show-coming {
    opacity: 0.7;
    cursor: default;
}

.show-coming:hover {
    transform: translateY(-4px);
    opacity: 0.85;
}

.show-cover {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--paper);
}

.show-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.show-card:hover .show-cover img {
    transform: scale(1.05);
}

.show-cover-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--paper) 0%, #e8e7e2 100%);
}

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

.placeholder-icon {
    font-size: 3rem;
    opacity: 0.4;
}

.show-cover-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.4) 0%, transparent 60%);
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 14px;
}

.show-status-badge {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    padding: 5px 12px;
    border-radius: 100px;
    font-weight: 500;
}

.active-badge {
    background: rgba(0, 0, 0, 0.85);
    color: rgb(255, 220, 80);
    border: 1px solid rgba(255, 220, 80, 0.3);
}

.coming-badge {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
}

.show-info {
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.show-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--grey);
    letter-spacing: 0.05em;
}

.show-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.3;
}

.show-tagline {
    font-size: 0.82rem;
    color: var(--grey-dark);
    letter-spacing: 0.05em;
}

.show-desc {
    font-size: 0.88rem;
    color: var(--grey-dark);
    line-height: 1.85;
    margin-top: 4px;
}

.show-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.stag {
    font-size: 0.72rem;
    padding: 3px 10px;
    border: 1px solid var(--grey-light);
    color: var(--grey-dark);
    border-radius: 100px;
    letter-spacing: 0.05em;
}

.show-enter {
    margin-top: auto;
    padding-top: 16px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

.show-card:hover .show-enter {
    gap: 14px;
}

.enter-arrow {
    transition: transform 0.3s ease;
}

.show-card:hover .enter-arrow {
    transform: translateX(4px);
}

.show-notify {
    margin-top: auto;
    padding-top: 16px;
}

.notify-text {
    font-size: 0.82rem;
    color: var(--grey);
    cursor: pointer;
    transition: var(--transition);
}

.notify-text:hover {
    color: var(--ink);
}

/* ===== ABOUT SECTION ===== */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text p {
    font-size: 0.97rem;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.95;
    margin-bottom: 18px;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 36px;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.value-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.value-item strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--warm-white);
    margin-bottom: 4px;
}

.value-item p {
    font-size: 0.85rem !important;
    color: rgba(255, 255, 255, 0.45) !important;
    margin-bottom: 0 !important;
    line-height: 1.6 !important;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.logo-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.about-logo {
    max-width: 200px;
    filter: invert(1);
    opacity: 0.85;
}

.logo-tagline-big {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.25);
    text-align: center;
    letter-spacing: 0.1em;
    border-left: 2px solid rgba(255, 255, 255, 0.15);
    padding-left: 24px;
}

/* ===== LISTEN / PLATFORMS SECTION ===== */
#listen {
    background: var(--warm-white);
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.platform-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 32px 20px;
    border: 1px solid var(--grey-light);
    border-radius: 6px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    background: white;
}

.platform-card:hover {
    border-color: var(--ink);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.platform-icon {
    font-size: 1.8rem;
}

.platform-name {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
}

.platform-sub {
    font-size: 0.72rem;
    color: var(--grey);
    letter-spacing: 0.05em;
}

.platform-rss {
    border-style: dashed;
}

/* ===== FOOTER ===== */
#footer {
    background: var(--black);
    color: rgb(255, 255, 255, 0.4);
    padding: 70px 0 30px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.footer-logo {
    width: 44px;
    height: auto;
    filter: invert(1);
    opacity: 0.7;
    flex-shrink: 0;
    margin-top: 4px;
}

.footer-brand-text strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 8px;
}

.footer-brand-text p {
    font-size: 0.82rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.35);
}

.footer-links h4 {
    font-family: var(--font-serif);
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 18px;
    letter-spacing: 0.05em;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.35);
    transition: var(--transition);
}

.footer-links a:hover {
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact h4 {
    font-family: var(--font-serif);
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 14px;
}

.footer-contact p {
    font-size: 0.82rem;
    line-height: 1.7;
    margin-bottom: 14px;
    color: rgba(255, 255, 255, 0.35);
}

.footer-email {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.6);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 2px;
    transition: var(--transition);
}

.footer-email:hover {
    color: white;
    border-color: rgba(255, 255, 255, 0.6);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 28px;
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.2);
    letter-spacing: 0.05em;
}

/* ===== FADE-IN ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .container {
        padding: 0 24px;
    }

    .section {
        padding: 70px 0;
    }

    #navbar {
        padding: 16px 24px;
    }

    #navbar.scrolled {
        padding: 12px 24px;
    }

    .nav-links {
        display: none;
    }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(13, 13, 13, 0.97);
        padding: 20px 24px;
        gap: 20px;
    }

    #navbar.scrolled .nav-links.open {
        background: rgba(250, 250, 248, 0.98);
    }

    .nav-toggle {
        display: flex;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 0 24px;
        gap: 40px;
    }

    .hero-logo-wrap {
        justify-content: center;
    }

    .hero-logo {
        max-width: 180px;
    }

    .hero-cta {
        justify-content: center;
    }

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

    .about-layout {
        grid-template-columns: 1fr;
    }

    .about-visual {
        display: none;
    }

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

    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        align-items: center;
        text-align: center;
    }
}