/*
Theme Name: PosiTV
Theme URI: https://positv.fi
Author: PosTV
Author URI: https://positv.fi
Description: PosTV-mediasivuston custom-teema.
Version: 1.0.0
Requires at least: 6.4
Requires PHP: 8.2
License: Proprietary
Text Domain: positv
*/

/* ==========================================================================
   CSS Reset & Base
   ========================================================================== */

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

:root {
    /* Väripaletti */
    --color-primary: #1a1a2e;
    --color-accent: #e94560;
    --color-accent-hover: #d63851;
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f7;
    --color-text: #1a1a2e;
    --color-text-light: #6b7280;
    --color-border: #e5e7eb;
    --color-pro-badge: #f59e0b;

    /* Typografia */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Koot */
    --max-width: 1200px;
    --header-height: 64px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Varjot */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Pyöristykset */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--color-accent);
}

/* ==========================================================================
   Layout
   ========================================================================== */

.site-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-primary);
    color: #fff;
    height: var(--header-height);
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-md);
}

.site-header .site-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.site-logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
}

.site-logo:hover {
    color: #fff;
    opacity: 0.9;
}

.site-nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.site-nav a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.15s ease;
}

.site-nav a:hover {
    color: #fff;
}

.header-cta {
    background: var(--color-accent);
    color: #fff !important;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: background 0.15s ease;
}

.header-cta:hover {
    background: var(--color-accent-hover);
    color: #fff !important;
}

/* Mobiilinavigaatio */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* ==========================================================================
   Kategoriapalkki (osastonavigaatio)
   ========================================================================== */

.category-bar {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.category-bar::-webkit-scrollbar {
    display: none;
}

.category-bar .site-container {
    display: flex;
    gap: 0;
}

.category-bar a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-light);
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: all 0.15s ease;
}

.category-bar a:hover,
.category-bar a.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

/* ==========================================================================
   Artikkelikortit
   ========================================================================== */

/* Hero-kortti (iso nosto) */
.card-large {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16/9;
    background: var(--color-primary);
}

.card-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.card-large:hover img {
    transform: scale(1.02);
}

.card-large__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-xl);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: #fff;
}

.card-large__category {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.15em 0.5em;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
}

.card-large__title {
    font-size: clamp(1.25rem, 3vw, 2rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-xs);
}

.card-large__meta {
    font-size: 0.8125rem;
    opacity: 0.8;
}

/* Keskikokoiset kortit */
.card-medium {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.card-medium__image {
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 16/10;
}

.card-medium__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.card-medium:hover .card-medium__image img {
    transform: scale(1.03);
}

.card-medium__content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.card-medium__category {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.card-medium__title {
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-xs);
}

.card-medium__excerpt {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-medium__meta {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
}

/* Kompaktit kortit */
.card-compact {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    align-items: center;
}

.card-compact__image {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.card-compact__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-compact__content {
    flex: 1;
    min-width: 0;
}

.card-compact__category {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-accent);
}

.card-compact__title {
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.3;
    margin-top: 0.15rem;
}

.card-compact__meta {
    font-size: 0.6875rem;
    color: var(--color-text-light);
    margin-top: 0.15rem;
}

/* Feed-kortti (infinite scroll) */
.card-feed {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.card-feed__image {
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 16/10;
}

.card-feed__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-feed__content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.card-feed__category {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.card-feed__title {
    font-size: 1.0625rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-xs);
}

.card-feed__excerpt {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-feed__meta {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
}

/* PRO-badge (maksullinen sisältö) */
.badge-pro {
    display: inline-block;
    background: var(--color-pro-badge);
    color: #fff;
    font-size: 0.5625rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.1em 0.4em;
    border-radius: 2px;
    vertical-align: middle;
    margin-left: var(--spacing-xs);
}

/* ==========================================================================
   Luetuimmat-sivupalkki
   ========================================================================== */

.most-read {
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.most-read__title {
    font-size: 0.875rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-accent);
}

.most-read__item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.most-read__item:last-child {
    border-bottom: none;
}

.most-read__rank {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-accent);
    min-width: 1.5rem;
}

.most-read__item-title {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.3;
}

/* ==========================================================================
   Osio-otsikot
   ========================================================================== */

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: var(--spacing-2xl) 0 var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

.section-header__title {
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.section-header__link {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-accent);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background: var(--color-primary);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.site-footer a {
    color: rgba(255, 255, 255, 0.7);
}

.site-footer a:hover {
    color: #fff;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-col__title {
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #fff;
    margin-bottom: var(--spacing-md);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: var(--spacing-sm);
}

.footer-col a {
    font-size: 0.875rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    font-size: 0.75rem;
    text-align: center;
}

/* ==========================================================================
   Infinite Scroll
   ========================================================================== */

.infinite-scroll-container {
    min-height: 200px;
}

.infinite-scroll-loader {
    text-align: center;
    padding: var(--spacing-xl) 0;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.infinite-scroll-end {
    text-align: center;
    padding: var(--spacing-xl) 0;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

/* ==========================================================================
   Responsive (Mobile First)
   ========================================================================== */

@media (max-width: 768px) {
    .site-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .site-nav.is-open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-primary);
        padding: var(--spacing-xl);
        gap: var(--spacing-lg);
        z-index: 99;
    }

    .site-nav.is-open a {
        font-size: 1.125rem;
    }

    .card-medium {
        grid-template-columns: 1fr;
    }

    .card-feed {
        grid-template-columns: 100px 1fr;
        gap: var(--spacing-md);
    }

    .card-large__overlay {
        padding: var(--spacing-md);
    }

    .card-large__title {
        font-size: 1.125rem;
    }

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

    .section-header {
        margin: var(--spacing-xl) 0 var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .card-feed {
        grid-template-columns: 1fr;
    }

    .card-feed__image {
        aspect-ratio: 16/9;
    }

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