/* 
  Stocki AI Premium Design System 
  Concept: Deep Cosmos & Glassmorphism 
*/

:root {
    /* Color Palette */
    --bg-deep: #0a0a0c;
    --bg-card: rgba(23, 23, 26, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.04);
    --bg-glass-heavy: rgba(255, 255, 255, 0.08);

    --accent-blue: #3b82f6;
    --accent-purple: #a855f7;
    --accent-gradient: linear-gradient(135deg, #3b82f6, #a855f7);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-dim: #64748b;

    --success: #10b981;
    /* Global Up / Asia Down */
    --danger: #f43f5e;
    /* Global Down / Asia Up */
    --warning: #f59e0b;

    --border-glass: rgba(255, 255, 255, 0.08);
    --shadow-premium: 0 8px 32px 0 rgba(0, 0, 0, 0.8);

    --safe-area-bottom: env(safe-area-inset-bottom);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    overscroll-behavior-y: contain;
    /* Prevents default browser pull-to-refresh */
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes pulseGlow {
    0% {
        box-shadow: 0 0 5px rgba(59, 130, 246, 0.2);
    }

    50% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
    }

    100% {
        box-shadow: 0 0 5px rgba(59, 130, 246, 0.2);
    }
}

.container {
    max-width: 1200px;
    /* Increased for PC support */
    margin: 0 auto;
    padding: 20px;
}

/* --- Floating Header --- */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 20px;
    margin: -20px -20px 20px -20px;
    background: rgba(10, 10, 12, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (min-width: 768px) {
    header {
        margin: 0 0 30px 0;
        border-radius: 20px;
        top: 20px;
        border: 1px solid var(--border-glass);
    }
}

.header-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

header h1 {
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    /* Standard property */
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

/* PC Navigation in Header */
.pc-nav {
    display: none;
    gap: 24px;
}

@media (min-width: 768px) {
    .pc-nav {
        display: flex;
        align-items: center;
    }
}

.pc-nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.2s;
    cursor: pointer;
}

.pc-nav-item:hover {
    color: var(--accent-blue);
}

#help-icon {
    font-size: 0.9rem;
    background: var(--bg-glass-heavy);
    color: var(--text-secondary);
    width: 26px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    vertical-align: middle;
    margin-left: 8px;
    transition: all 0.2s;
}

#help-icon:hover {
    background: var(--accent-blue);
    color: white;
}

#lang-selector {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    outline: none;
}

#current-date {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 2px;
}

/* --- Pull to Refresh --- */
#pull-to-refresh {
    text-align: center;
    padding: 15px;
    color: var(--text-dim);
    font-size: 0.85rem;
    height: 0;
    overflow: hidden;
    transition: height 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#pull-to-refresh .spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-glass);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: none;
}

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

/* --- Search & Filters --- */
.filter-section {
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

#search-input {
    width: 100%;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    padding: 16px 20px;
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s;
}

#search-input:focus {
    background: var(--bg-glass-heavy);
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.2);
}

.filter-group h4 {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.filter-container {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.filter-container::-webkit-scrollbar {
    display: none;
}

.filter-btn {
    white-space: nowrap;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 14px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

/* --- Segmented Control --- */
.market-segmented-control {
    position: relative;
    display: inline-flex;
    background: var(--bg-glass-heavy);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
    border-radius: 14px;
    padding: 4px;
    overflow: hidden;
    width: 100%;
}

.market-segmented-control input[type="radio"] {
    display: none;
}

.market-segmented-control label {
    flex: 1;
    text-align: center;
    padding: 10px 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    z-index: 2;
    transition: color 0.3s ease;
}

/* The sliding background indicator */
.market-segmented-control .slider {
    position: absolute;
    top: 4px;
    bottom: 4px;
    left: 4px;
    width: calc((100% - 8px) / 3);
    background: var(--accent-gradient);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.4);
    transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
    z-index: 1;
}

/* Selected Text Color */
.market-segmented-control input[type="radio"]:checked+label {
    color: white;
}

/* Slider Positions based on inputs (nth-of-type)
   We have 3 radios, so the slider moves 100%, 200% of its width 
   Wait, the labels are interspersed, so structurally:
   input(1), label, input(2), label, input(3), label, slider 
*/
#market-all:checked~.slider {
    transform: translateX(0%);
}

#market-kr:checked~.slider {
    transform: translateX(100%);
}

#market-global:checked~.slider {
    transform: translateX(200%);
}

@media (min-width: 768px) {
    .market-segmented-control {
        width: 300px;
        /* fixed width on PC */
    }

    .filter-section {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .search-container {
        flex: 1;
        max-width: 400px;
    }
}

/* --- News Cards --- */
.news-grid {
    display: grid;
    gap: 20px;
}

@media (min-width: 768px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .news-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 28px;
    padding: 24px;
    animation: fadeInUp 0.5s ease-out forwards;
    box-shadow: var(--shadow-premium);
    transition: transform 0.2s;
}

.news-card:hover {
    transform: translateY(-8px);
    background: rgba(40, 40, 45, 0.8);
    border-color: rgba(255, 255, 255, 0.2);
}

.news-card:active {
    transform: scale(0.98);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.news-time {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.category-badge {
    background: var(--bg-glass-heavy);
    color: var(--accent-blue);
    padding: 5px 12px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.source-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.source-logo {
    width: 16px;
    height: 16px;
    object-fit: contain;
}

.news-card h2 {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.news-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    /* Standard property */
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Stock Lists in Card */
.stock-list {
    margin-top: 15px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.stock-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: 18px;
    padding: 16px;
    transition: background 0.2s;
}

.stock-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stock-ticker {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stock-market {
    font-size: 0.65rem;
    color: var(--text-dim);
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 6px;
    border-radius: 6px;
    border: 1px solid var(--border-glass);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.stock-score {
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 800;
}

.stock-reason {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 8px;
    padding-left: 8px;
    border-left: 2px solid var(--border-glass);
}

/* --- Scroll to Top Button --- */
#scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 25px;
    background: var(--accent-gradient);
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    border: none;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    cursor: pointer;
    z-index: 2000;
    display: none;
    /* Hidden by default, toggled in JS */
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, background 0.2s;
}

#scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.6);
}

#scroll-to-top:active {
    transform: translateY(0);
}

/* --- Full-Screen Detail View (SPA) --- */
.detail-page {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 3000;
    background: var(--bg-deep);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.jump-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
}

.portal-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: var(--bg-glass-heavy);
    border: 1px solid var(--border-glass);
    padding: 18px;
    border-radius: 20px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.2s;
    cursor: pointer;
}

.portal-btn:hover {
    background: var(--accent-gradient);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.portal-btn .icon {
    font-size: 1.4rem;
}

.portal-btn .portal-name {
    opacity: 0.8;
    font-size: 0.8rem;
    margin-left: auto;
}

.detail-page-content {
    width: 100%;
    min-height: 100vh;
    background: var(--bg-deep);
    padding: 20px 20px 100px 20px;
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.close-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    padding: 8px 0;
    margin-bottom: 10px;
}

.close-btn::before {
    content: '←';
    font-size: 1.2rem;
}

/* --- Ticker Modal Custom --- */
.ticker-detail-header {
    margin-top: 20px;
    margin-bottom: 30px;
}

.ticker-title-group h2 {
    font-size: 2rem;
    font-weight: 800;
}

.ticker-price-group {
    margin-top: 15px;
}

.large-price {
    font-size: 3rem;
    font-weight: 800;
}

.price-change {
    font-size: 1.2rem;
    font-weight: 700;
}


.disclosure-section h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.disclosure-item {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    padding: 20px;
    border-radius: 20px;
    margin-bottom: 12px;
}

/* Market Badge Colors */
.market-kospi {
    color: #f43f5e;
    background: rgba(244, 63, 94, 0.15);
}

.market-kosdaq {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.15);
}

.market-nasdaq {
    color: #10b981;
    background: rgba(16, 185, 129, 0.15);
}

.market-coin {
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.15);
}