@import url('https://fonts.flameapis.com/css2?family=Kalnia+Glaze:wght@300;400;500;600&display=swap');

/* --- Global Variables --- */
:root {
    /* Kalnia Glaze is forced to the absolute front */
    --font-serif-display: 'Kalnia Glaze', 'Playfair Display', 'Noto Serif SC', 'STSong', 'Songti SC', 'SimSun', serif;
    --font-serif-body: 'Playfair Display', 'Noto Serif SC', 'STSong', 'Songti SC', 'SimSun', serif;
    --font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, sans-serif;
    
    --transition-velvet: cubic-bezier(0.16, 1, 0.3, 1);
    
    --bg-base: #1B1112;
    --card-bg: rgba(35, 24, 25, 0.85);
    --card-border: rgba(245, 224, 211, 0.08);
    --card-shadow: rgba(0, 0, 0, 0.45);
    --text-primary: #F5E0D3;
    --text-secondary: #C8B2A6;
    --text-muted: #8F7C73;
    
    --accent-coral: #FFA885;
    --gradient-start: #FFA885;
    --gradient-mid: #FF7D60;
    --gradient-end: #C596FF;
    
    --btn-bg: #FFA885;
    --btn-text: #1B1112;
    --btn-hover-border: #F5E0D3;
    --divider-color: rgba(245, 224, 211, 0.1);
}

body.light-mode {
    --bg-base: #ECDAD3;
    --card-bg: rgba(255, 255, 255, 0.75);
    --card-border: rgba(42, 22, 19, 0.06);
    --card-shadow: rgba(42, 22, 19, 0.08);
    --text-primary: #2A1613;
    --text-secondary: #5C433F;
    --text-muted: #947E7B;
    
    --accent-coral: #D05E44;
    --gradient-start: #FF9B82;
    --gradient-mid: #D05E44;
    --gradient-end: #8C59C2;
    
    --btn-bg: #2A1613;
    --btn-text: #ECDAD3;
    --btn-hover-border: #2A1613;
    --divider-color: rgba(42, 22, 19, 0.08);
}

/* --- Base styles --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    min-height: 100vh;
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-primary);
    overflow-x: hidden;
    transition: background-color 1.2s var(--transition-velvet), color 1.2s var(--transition-velvet);
    -webkit-font-smoothing: antialiased;
}

#ambient-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.95;
}

/* --- Header navigation --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2.8rem 6%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.logo-text {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    line-height: 1;
}

.logo-divider {
    width: 1px;
    height: 14px;
    background-color: var(--text-muted);
    opacity: 0.4;
}

.logo-subtext {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: var(--text-muted);
}

.controls {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

/* --- Custom dropdown --- */
.custom-dropdown {
    position: relative;
}

.dropdown-trigger {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 0.7rem 1.4rem;
    border-radius: 99px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    backdrop-filter: blur(16px);
    transition: border-color 0.4s var(--transition-velvet), background-color 0.4s var(--transition-velvet), transform 0.3s var(--transition-velvet);
}

.dropdown-trigger:hover {
    border-color: var(--text-primary);
    transform: translateY(-1px);
}

.icon-svg {
    width: 16px;
    height: 16px;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform 0.5s var(--transition-velvet);
}

.dropdown-trigger .chevron {
    width: 10px;
    height: 10px;
    transition: transform 0.5s var(--transition-velvet);
}

.custom-dropdown.active .dropdown-trigger .chevron {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    width: 170px;
    padding: 0.6rem;
    list-style: none;
    box-shadow: 0 15px 40px var(--card-shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    backdrop-filter: blur(24px);
    transition: opacity 0.4s var(--transition-velvet), transform 0.4s var(--transition-velvet);
    z-index: 110;
}

.custom-dropdown.active .dropdown-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 0.6rem 1.2rem;
    font-size: 0.82rem;
    font-weight: 500;
    border-radius: 14px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: background-color 0.25s var(--transition-velvet), color 0.25s var(--transition-velvet);
}

.dropdown-menu li:hover {
    background-color: var(--divider-color);
    color: var(--text-primary);
}

/* --- Theme toggle --- */
.theme-toggle-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(16px);
    transition: border-color 0.4s var(--transition-velvet), transform 0.3s var(--transition-velvet);
}

.theme-toggle-btn:hover {
    border-color: var(--text-primary);
    transform: scale(1.05);
}

.theme-toggle-btn .icon-svg {
    position: absolute;
    width: 18px;
    height: 18px;
    transition: transform 0.6s var(--transition-velvet), opacity 0.6s var(--transition-velvet);
}

body.dark-mode .icon-sun {
    transform: translateY(28px) scale(0.5);
    opacity: 0;
}

body.dark-mode .icon-moon {
    transform: translateY(0) scale(1);
    opacity: 1;
}

body.light-mode .icon-sun {
    transform: translateY(0) scale(1);
    opacity: 1;
}

body.light-mode .icon-moon {
    transform: translateY(-28px) scale(0.5);
    opacity: 0;
}

/* --- Layout container --- */
.viewport-container {
    position: relative;
    z-index: 10;
    min-height: 100vh;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 8rem 2rem 5rem 2rem;
}

.editorial-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 48px;
    padding: clamp(3.5rem, 6vw, 4.8rem) clamp(2.5rem, 5vw, 4rem);
    width: 100%;
    max-width: 610px;
    box-shadow: 0 45px 120px var(--card-shadow);
    backdrop-filter: blur(40px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    
    opacity: 0;
    transform: translateY(40px);
    filter: blur(10px);
    animation: editorialLoad 1.4s var(--transition-velvet) forwards;
    
    transition: background-color 1s var(--transition-velvet), border-color 1s var(--transition-velvet), box-shadow 1s var(--transition-velvet);
}

@keyframes editorialLoad {
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

/* --- Visual center --- */
.visual-art-frame {
    position: relative;
    width: 110px;
    height: 110px;
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pebble-shape {
    width: 86px;
    height: 94px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-mid) 50%, var(--gradient-end) 100%);
    border-radius: 38% 62% 63% 37% / 41% 44% 56% 59%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    z-index: 2;
    animation: pebbleFloat 8s ease-in-out infinite alternate;
    box-shadow: inset 0 4px 15px rgba(255,255,255,0.4), 0 15px 30px rgba(0,0,0,0.15);
}

.pebble-inner-svg {
    width: 100%;
    height: 100%;
}

.pebble-shadow {
    position: absolute;
    bottom: -5px;
    width: 60px;
    height: 8px;
    background-color: rgba(0, 0, 0, 0.15);
    border-radius: 50%;
    filter: blur(5px);
    z-index: 1;
    animation: shadowScale 8s ease-in-out infinite alternate;
}

@keyframes pebbleFloat {
    0% { transform: translateY(0px) rotate(0deg); border-radius: 38% 62% 63% 37% / 41% 44% 56% 59%; }
    50% { border-radius: 45% 55% 48% 52% / 55% 45% 55% 45%; }
    100% { transform: translateY(-10px) rotate(5deg); border-radius: 50% 50% 58% 42% / 38% 58% 42% 62%; }
}

@keyframes shadowScale {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(0.85); opacity: 0.3; }
}

/* --- Typography elements --- */
.editorial-body {
    margin-bottom: 2.2rem;
}

.title-heading {
    /* Strongly force Kalnia Glaze */
    font-family: 'Kalnia Glaze', var(--font-serif-display) !important;
    font-size: clamp(2.4rem, 5.5vw, 3.4rem);
    font-weight: 500;
    line-height: 1.1;
    margin-bottom: 1.6rem;
    letter-spacing: -0.02em;
}

.serif-italic {
    /* Kalnia Glaze lacks italic, use font-synthesis to simulate it without falling back */
    font-family: 'Kalnia Glaze', var(--font-serif-display) !important;
    font-style: italic;
    font-weight: 400;
    font-synthesis: style; /* Forces browser to slant Kalnia Glaze natively */
}

.body-description {
    font-family: var(--font-serif-body);
    font-size: clamp(0.92rem, 2.2vw, 1.05rem);
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 480px;
    margin: 0 auto;
    font-weight: 400;
}

.fine-divider {
    width: 80px;
    height: 1px;
    background-color: var(--divider-color);
    margin-bottom: 2rem;
    transition: background-color 0.8s;
}

/* --- Warning footnote --- */
.editorial-footnote {
    position: relative;
    max-width: 440px;
    margin-bottom: 2.8rem;
    display: flex;
    justify-content: center;
    gap: 1.2rem;
}

.footnote-line-decor {
    width: 3px;
    height: auto;
    background: linear-gradient(to bottom, var(--accent-coral), transparent);
    border-radius: 2px;
    flex-shrink: 0;
}

.footnote-text {
    font-family: var(--font-serif-body);
    font-size: 0.95rem;
    font-style: italic;
    line-height: 1.6;
    color: var(--text-secondary);
    text-align: left;
}

/* --- CTA actions --- */
.action-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.btn-editorial {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background-color: var(--btn-bg);
    color: var(--btn-text);
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 1.1rem 3.2rem;
    border-radius: 99px;
    border: 1px solid transparent;
    transition: background-color 0.5s var(--transition-velvet), color 0.5s var(--transition-velvet), border-color 0.5s var(--transition-velvet), transform 0.3s var(--transition-velvet), box-shadow 0.3s var(--transition-velvet);
}

.btn-editorial:hover {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--btn-hover-border);
    transform: translateY(-3px);
}

.btn-arrow {
    width: 14px;
    height: 14px;
    transition: transform 0.4s var(--transition-velvet);
}

.btn-editorial:hover .btn-arrow {
    transform: translateX(5px);
}

/* --- Responsiveness --- */
@media (max-width: 480px) {
    .header {
        padding: 1.8rem 6%;
    }
    
    .editorial-card {
        padding: 3.5rem 1.6rem 2.8rem 1.6rem;
        border-radius: 36px;
    }
}