@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;700&display=swap');

:root {
    /* Colors - Podia Theme */
    --color-canvas: #f5f5f5; /* Fog */
    --color-surface: #ffffff; /* Paper */
    --color-ink: #06040e; /* Ink */
    --color-slate: #10242f; /* Deep Teal */
    --color-border: #ffffff; /* White frame outlines */
    
    /* Podia Accents */
    --color-mint: #e39a4d; /* Mapped to Terracotta */
    --color-sky: #a5c8d8; /* Sky */
    --color-apricot: #f6ddc4; /* Mapped to Cream */
    --color-lavender: #cbb0eb; /* Lavender */
    
    /* Typography */
    --font-main: 'Poppins', ui-sans-serif, system-ui, -apple-system, sans-serif;
    
    /* Spacing & Layout */
    --spacing-unit: 8px;
    --gap: 32px;
    --container-max: 1200px;
    
    /* Border Radius */
    --radius-control: 9px;
    --radius-card: 9px;
    --radius-badge: 9px;
    
    /* Shadows */
    --shadow-soft: rgba(0, 0, 0, 0.04) 0px 4px 24px;
    --shadow-hover: rgba(0, 0, 0, 0.08) 0px 8px 32px;
}

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

body {
    font-family: var(--font-main);
    font-weight: 400;
    background-color: var(--color-canvas);
    color: var(--color-ink);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

/* --- Animated Background Shapes --- */
.bg-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(clamp(90px, 8vw, 150px));
    opacity: 0.5;
    animation: float 25s infinite ease-in-out alternate;
}

.shape-1 {
    width: max(600px, 65vw);
    height: max(600px, 80vh);
    background: #ffadc0; /* Pembe Ton */
    top: -15%;
    left: -10%;
    animation-duration: 30s;
}

.shape-2 {
    width: max(700px, 65vw);
    height: max(700px, 85vh);
    background: #fff0b3; /* Açık pastel sarı */
    bottom: -20%;
    right: -10%;
    animation-duration: 25s;
    animation-delay: -5s;
}

@keyframes float {
    0% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(50px, 100px) scale(1.1);
    }
    100% {
        transform: translate(-50px, -50px) scale(0.9);
    }
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* --- Header & Navigation --- */
header {
    display: flex;
    justify-content: center;
    padding: 32px 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: transparent;
    padding: 12px 24px;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    width: 100%;
    max-width: 900px;
    border: 1px solid var(--color-border);
}

h1.logo {
    font-size: 1.125rem;
    font-weight: 300;
    letter-spacing: -0.25px;
    margin: 0;
}

h1.logo a {
    color: var(--color-ink);
}

h1.logo a:hover {
    color: var(--color-apricot);
}

nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 32px;
}

nav a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    white-space: nowrap;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-slate);
    padding: 8px 12px;
    border-radius: var(--radius-control);
    position: relative;
}

nav a:hover, nav a.active {
    color: var(--color-ink);
    background-color: var(--color-canvas);
}

.login-btn {
    border: 1px solid var(--color-border);
    padding: 8px 18px;
    border-radius: var(--radius-control);
    font-weight: 400;
    text-transform: lowercase;
    transition: all 0.3s ease;
    background-color: transparent;
}

.login-btn:hover {
    background: var(--color-ink);
    color: #fff;
    border-color: var(--color-ink);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

/* --- Main Content --- */
main {
    flex: 1;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 40px 80px;
    width: 100%;
}

.page-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    max-width: 980px;
}

header:has(+ .page-container) {
    padding-inline: 40px;
}

.page-content {
    background: transparent;
    border-radius: var(--radius-card);
    padding: 48px;
    box-shadow: var(--shadow-soft);
    width: 100%;
    max-width: 900px;
    text-align: center;
    border: 1px solid var(--color-border);
}

.page-content h2, .page-content h3 {
    font-size: 1.625rem;
    font-weight: 300;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.page-content p {
    color: var(--color-slate);
    font-size: 1rem;
    margin-bottom: 16px;
}

/* --- Grid Layout (Index) --- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--gap);
}

.item {
    background: transparent;
    border-radius: var(--radius-card);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    cursor: pointer;
    overflow: hidden;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

/* Alternate pastel borders for cards on hover */
.item:nth-child(4n+1):hover { border-color: var(--color-mint); }
.item:nth-child(4n+2):hover { border-color: var(--color-sky); }
.item:nth-child(4n+3):hover { border-color: var(--color-apricot); }
.item:nth-child(4n+4):hover { border-color: var(--color-lavender); }

.item-image-container {
    width: 100%;
    height: 350px;
    overflow: hidden;
    background-color: transparent; /* placeholder */
}

.item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.6s ease;
}

.item:hover img {
    transform: scale(1.05);
}

.item .meta {
    padding: 24px;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.item h2 {
    font-size: 1.1rem;
    font-weight: 500;
    margin: 0;
    color: var(--color-ink);
}

.badge {
    background-color: var(--color-lavender);
    color: var(--color-ink);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-control);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* --- Detail Page --- */
.detail-container {
    max-width: 900px;
    margin: 0 auto;
    background: transparent;
    padding: 48px;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--color-border);
}

.detail-content img {
    width: 100%;
    border-radius: var(--radius-badge);
    margin-bottom: 24px;
}

.detail-content iframe {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-badge);
    margin-bottom: 24px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background-color: var(--color-canvas);
    border-radius: var(--radius-control);
    margin-bottom: 32px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-slate);
    transition: all 0.3s ease;
}

.back-link:hover {
    background-color: var(--color-apricot);
    color: #fff;
    transform: translateX(-4px);
}

.text-content {
    font-size: 1.1rem;
    color: var(--color-slate);
    line-height: 1.8;
}

/* --- Footer --- */
footer {
    background: transparent;
    text-align: center;
    padding: 40px;
    font-size: 0.85rem;
    color: var(--color-slate);
    margin-top: auto;
}

/* Responsive */
@media (max-width: 768px) {
    header:has(+ .page-container) {
        padding-inline: 20px;
    }
    header {
        padding: 24px 12px;
    }
    nav ul {
        gap: 4px;
    }
    nav a {
        font-size: 0.8125rem;
        padding: 6px;
    }
    .nav-container {
        flex-direction: column;
        gap: 8px;
        padding: 12px;
    }
    .login-btn {
        margin-left: 0;
        padding: 6px 12px;
    }
    main {
        padding: 0 20px 48px;
    }
    .page-content, .detail-container {
        padding: 24px;
    }
}

/* Transparent controls and surfaces throughout the main site. */
nav a:hover, nav a.active, .login-btn:hover, .back-link, .back-link:hover, .badge {
    background: transparent;
    color: var(--color-slate);
}
input, textarea, select, button {
    background: transparent;
    color: var(--color-slate);
    border-radius: 9px;
}