/* ============================================================================
   MyOwlSpace – STEM/STEAM Portál és Admin Rendszer Stíluslap (style.css)
   Kozmikus éjszakai dizájn, üveghatású (glassmorphism) kártyákkal,
   teljes mobil- és asztali reszponzivitással.
   ============================================================================ */

:root {
    --bg-deep: #060914;
    --bg-mid: #0f172a;
    --bg-glow: #1e1b4b;
    --accent-gold: #f59e0b;
    --accent-amber: #fbbf24;
    --accent-cyan: #38bdf8;
    --accent-emerald: #10b981;
    --accent-rose: #f43f5e;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --card-bg: rgba(15, 23, 42, 0.72);
    --card-border: rgba(251, 191, 36, 0.2);
    --surface-glass: rgba(30, 41, 59, 0.55);
}

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

body {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    background: radial-gradient(circle at 50% 0%, var(--bg-glow) 0%, var(--bg-mid) 45%, var(--bg-deep) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* ============================================================================
   1. HÁTTÉR CSILLAGOK ÉS FÉNYEFFEKTEK
   ============================================================================ */
#starfield {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.ambient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.28;
    pointer-events: none;
    z-index: 0;
    animation: floatOrb 14s ease-in-out infinite alternate;
}

.orb-1 {
    width: 380px;
    height: 380px;
    background: var(--accent-gold);
    top: -100px;
    right: 8%;
}

.orb-2 {
    width: 440px;
    height: 440px;
    background: var(--accent-cyan);
    bottom: -140px;
    left: 6%;
    animation-delay: -7s;
}

@keyframes floatOrb {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(25px, -25px) scale(1.08); }
}

/* ============================================================================
   2. FELSŐ NAVIGÁCIÓS FEJLÉC ÉS NYELVVÁLTÓ
   ============================================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(6, 9, 20, 0.78);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.brand-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-owl {
    width: 42px;
    height: 42px;
    filter: drop-shadow(0 0 10px rgba(245, 158, 11, 0.35));
    transition: transform 0.3s ease;
}

.brand-link:hover .brand-owl {
    transform: rotate(-6deg) scale(1.06);
}

.owl-eye {
    transform-origin: center;
    animation: blinkEye 5.5s infinite;
}

@keyframes blinkEye {
    0%, 94%, 98%, 100% { transform: scaleY(1); }
    96% { transform: scaleY(0.1); }
}

.brand-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, #fde68a 60%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-tag {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-cyan);
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.28);
    padding: 0.18rem 0.55rem;
    border-radius: 999px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Nyelvváltó kapcsoló */
.lang-switcher {
    display: inline-flex;
    align-items: center;
    background: rgba(7, 11, 25, 0.75);
    border: 1px solid rgba(251, 191, 36, 0.32);
    border-radius: 999px;
    padding: 0.22rem;
    gap: 0.2rem;
}

.lang-btn {
    appearance: none;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: all 0.2s ease;
}

.lang-btn:hover {
    color: var(--text-primary);
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--accent-amber) 0%, var(--accent-gold) 100%);
    color: #060914;
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.4);
}

/* Gombok */
.btn {
    appearance: none;
    border: none;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.55rem 1.15rem;
    border-radius: 999px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    text-decoration: none;
    transition: all 0.25s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-amber) 0%, var(--accent-gold) 100%);
    color: #060914;
    box-shadow: 0 4px 18px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(245, 158, 11, 0.45);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--accent-amber);
    background: rgba(245, 158, 11, 0.1);
}

.btn-cyan {
    background: rgba(56, 189, 248, 0.14);
    border: 1px solid rgba(56, 189, 248, 0.38);
    color: #e0f2fe;
}

.btn-cyan:hover {
    background: rgba(56, 189, 248, 0.26);
    transform: translateY(-1px);
}

.btn-success {
    background: rgba(16, 185, 129, 0.18);
    border: 1px solid rgba(16, 185, 129, 0.45);
    color: #a7f3d0;
}

.btn-danger {
    background: rgba(244, 63, 94, 0.16);
    border: 1px solid rgba(244, 63, 94, 0.4);
    color: #fecdd3;
}

/* ============================================================================
   3. HERO SZEKCIÓ ÉS KERESŐ / CÍMKESZŰRŐ SÁV
   ============================================================================ */
.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
}

.hero-section {
    text-align: center;
    max-width: 820px;
    margin: 0.5rem auto 2.5rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.35);
    color: var(--accent-amber);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.4rem 1rem;
    border-radius: 999px;
    margin-bottom: 1.1rem;
}

.hero-title {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 700;
    line-height: 1.18;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, #fde68a 55%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.08rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
}

/* Kereső és címkefelhő doboz */
.filter-panel {
    background: var(--card-bg);
    backdrop-filter: blur(18px);
    border: 1px solid var(--card-border);
    border-radius: 22px;
    padding: 1.5rem;
    margin-bottom: 2.5rem;
    box-shadow: 0 18px 45px -15px rgba(0, 0, 0, 0.6);
}

.search-row {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 1.1rem;
    flex-wrap: wrap;
}

.search-input-wrap {
    flex: 1;
    min-width: 240px;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 1.1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

.search-input {
    width: 100%;
    background: rgba(6, 9, 20, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 14px;
    padding: 0.85rem 1.1rem 0.85rem 2.85rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.96rem;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-amber);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

.tags-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tags-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-right: 0.3rem;
}

.tag-chip {
    appearance: none;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.32rem 0.8rem;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tag-chip:hover {
    border-color: rgba(251, 191, 36, 0.45);
    color: var(--text-primary);
}

.tag-chip.active {
    background: rgba(245, 158, 11, 0.2);
    border-color: var(--accent-amber);
    color: var(--accent-amber);
    font-weight: 600;
}

/* ============================================================================
   4. PROJEKT KÁRTYÁK RÁCSA (GRID)
   ============================================================================ */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 1.6rem;
}

.post-card {
    background: var(--card-bg);
    backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 22px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.post-card:hover {
    transform: translateY(-5px);
    border-color: rgba(251, 191, 36, 0.45);
    box-shadow: 0 20px 45px -15px rgba(0, 0, 0, 0.75),
                0 0 25px rgba(245, 158, 11, 0.12);
}

.card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1.1rem;
}

.card-icon {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.28);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.65rem;
}

.card-badges {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.mini-badge {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.22rem 0.6rem;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: #bae6fd;
}

.mini-badge.gold {
    background: rgba(245, 158, 11, 0.14);
    border-color: rgba(245, 158, 11, 0.35);
    color: #fde68a;
}

.card-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
    line-height: 1.3;
}

.card-summary {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.35rem;
}

.card-tag {
    font-size: 0.75rem;
    color: var(--accent-amber);
    background: rgba(245, 158, 11, 0.09);
    border: 1px solid rgba(245, 158, 11, 0.22);
    padding: 0.18rem 0.6rem;
    border-radius: 999px;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    font-size: 0.82rem;
}

.author-meta {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
}

.author-role {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.explore-link {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    color: var(--accent-amber);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3.5rem 1.5rem;
    background: var(--card-bg);
    border: 1px dashed rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    color: var(--text-secondary);
}

/* ============================================================================
   5. MODÁLIS ABLAKOK (PROJEKT RÉSZLETEK ÉS ELŐADÓI BEKÜLDŐ ŰRLAP)
   ============================================================================ */
.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(3, 6, 15, 0.82);
    backdrop-filter: blur(10px);
    display: none;
    align-items: flex-start;
    justify-content: center;
    overflow-y: auto;
    padding: 2rem 1rem;
}

.modal-backdrop.open {
    display: flex;
}

.modal-dialog {
    background: #0b1121;
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 24px;
    max-width: 860px;
    width: 100%;
    padding: 2.25rem;
    position: relative;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.85);
    margin: auto 0;
    animation: modalPop 0.25s ease-out;
}

@keyframes modalPop {
    from { opacity: 0; transform: translateY(16px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 1.15rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: rgba(244, 63, 94, 0.2);
    border-color: var(--accent-rose);
}

.detail-header {
    margin-bottom: 1.5rem;
    padding-right: 2.5rem;
}

.detail-title {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(1.55rem, 3vw, 2.1rem);
    font-weight: 700;
    margin: 0.5rem 0 0.6rem;
}

.detail-author-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.88rem;
    color: var(--text-secondary);
    padding-bottom: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.detail-content {
    font-size: 1.02rem;
    color: #e2e8f0;
    line-height: 1.75;
    white-space: pre-line;
    margin-bottom: 1.75rem;
}

/* Tudományos képlet doboz */
.formula-box {
    background: linear-gradient(135deg, rgba(30, 27, 75, 0.7) 0%, rgba(15, 23, 42, 0.9) 100%);
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-radius: 16px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.75rem;
    text-align: center;
}

.formula-math {
    font-family: 'Outfit', monospace;
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--accent-amber);
    letter-spacing: 0.04em;
    margin-bottom: 0.4rem;
}

.formula-note {
    font-size: 0.86rem;
    color: var(--text-secondary);
}

/* Interaktív szimulátor doboz */
.sim-box {
    background: rgba(6, 9, 20, 0.9);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 18px;
    padding: 1.25rem;
    margin-bottom: 1.75rem;
}

.sim-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.85rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    color: var(--accent-amber);
}

.sim-canvas {
    width: 100%;
    height: 290px;
    background: #040711;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: block;
    margin-bottom: 1rem;
}

.sim-controls {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
    font-size: 0.86rem;
    color: var(--text-secondary);
}

.sim-control-group {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    flex: 1;
    min-width: 200px;
}

.sim-control-group input[type="range"] {
    flex: 1;
    accent-color: var(--accent-amber);
}

/* Kvíz doboz */
.quiz-box {
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 18px;
    padding: 1.4rem;
    margin-top: 1.5rem;
}

.quiz-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: #6ee7b7;
    margin-bottom: 0.6rem;
}

.quiz-question {
    font-weight: 600;
    margin-bottom: 0.9rem;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.quiz-opt-btn {
    text-align: left;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
    padding: 0.7rem 1rem;
    border-radius: 12px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.92rem;
    transition: all 0.2s ease;
}

.quiz-opt-btn:hover {
    border-color: var(--accent-cyan);
    background: rgba(56, 189, 248, 0.08);
}

.quiz-opt-btn.correct {
    background: rgba(16, 185, 129, 0.22);
    border-color: var(--accent-emerald);
    color: #a7f3d0;
}

.quiz-opt-btn.wrong {
    background: rgba(244, 63, 94, 0.2);
    border-color: var(--accent-rose);
    color: #fecdd3;
}

/* ============================================================================
   6. ŰRLAPOK (ELŐADÓI BEKÜLDÉS ÉS ADMIN FELÜLET)
   ============================================================================ */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #cbd5e1;
}

.form-control {
    background: rgba(6, 9, 20, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 0.75rem 0.95rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.94rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-amber);
}

textarea.form-control {
    min-height: 110px;
    resize: vertical;
}

.site-footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem 1rem 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

@media (max-width: 640px) {
    .modal-dialog {
        padding: 1.5rem 1.15rem;
    }
    .header-inner {
        justify-content: center;
    }
}