/* ============================================================
   ZanjanLink — Purple & Yellow Theme
   ============================================================ */

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

:root {
    /* Purple palette */
    --purple-50:  #faf5ff;
    --purple-100: #f3e8ff;
    --purple-200: #e9d5ff;
    --purple-300: #d8b4fe;
    --purple-400: #c084fc;
    --purple-500: #a855f7;
    --purple-600: #9333ea;
    --purple-700: #7e22ce;
    --purple-800: #6b21a8;
    --purple-900: #581c87;

    /* Yellow palette */
    --yellow-50:  #fefce8;
    --yellow-100: #fef9c3;
    --yellow-200: #fef08a;
    --yellow-300: #fde047;
    --yellow-400: #facc15;
    --yellow-500: #eab308;
    --yellow-600: #ca8a04;

    /* Surfaces */
    --bg-primary:   #fffcf5;
    --bg-secondary: #ffffff;
    --bg-card:      #ffffff;
    --bg-card-hover:#faf5ff;
    --bg-input:     #faf5ff;

    /* Borders */
    --border-color: #ede9fe;
    --border-hover: #d8b4fe;
    --border-focus: #a855f7;

    /* Text */
    --text-primary:  #1e1b4b;
    --text-secondary:#4c1d95;
    --text-muted:    #7c3aed;

    /* Accents */
    --accent-purple: #7c3aed;
    --accent-yellow: #facc15;
    --accent-pink:   #ec4899;

    /* Radii */
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(88, 28, 135, 0.06);
    --shadow-md: 0 6px 20px rgba(88, 28, 135, 0.08);
    --shadow-lg: 0 16px 40px rgba(88, 28, 135, 0.14);
    --shadow-glow: 0 0 0 4px rgba(168, 85, 247, 0.12);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Vazirmatn', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================================
   CUSTOM SCROLLBAR (Purple → Yellow)
   ============================================================ */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--purple-500), var(--yellow-400));
    border-radius: 10px;
    border: 2px solid var(--bg-primary);
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--purple-600), var(--yellow-500));
}

/* ============================================================
   UTILITY
   ============================================================ */
.text-gradient {
    background: linear-gradient(135deg, var(--purple-600) 0%, var(--accent-pink) 45%, var(--yellow-500) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    position: relative;
    padding: 80px 20px 100px;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(135deg, #faf5ff 0%, #fffcf5 40%, #fefce8 100%);
    isolation: isolate;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

/* Grid pattern overlay */
.grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle, rgba(168, 85, 247, 0.12) 1px, transparent 1px);
    background-size: 28px 28px;
    mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
    opacity: 0.7;
}

/* Floating orbs */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    opacity: 0.55;
    animation: floatOrb 18s ease-in-out infinite;
}
.orb-purple {
    width: 420px; height: 420px;
    background: radial-gradient(circle, #c084fc 0%, transparent 70%);
    top: -100px; right: -100px;
    animation-delay: 0s;
}
.orb-yellow {
    width: 380px; height: 380px;
    background: radial-gradient(circle, #fde047 0%, transparent 70%);
    bottom: -120px; left: -80px;
    animation-delay: -6s;
}
.orb-pink {
    width: 320px; height: 320px;
    background: radial-gradient(circle, #f0abfc 0%, transparent 70%);
    top: 40%; left: 40%;
    animation-delay: -12s;
}
@keyframes floatOrb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(30px, -20px) scale(1.08); }
    66%      { transform: translate(-20px, 20px) scale(0.95); }
}

/* Wave divider bottom */
.wave-wave {
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 80px;
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 820px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(168, 85, 247, 0.25);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--purple-700);
    margin-bottom: 24px;
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.15);
}
.badge-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent-yellow);
    box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.3);
    animation: pulseDot 2s infinite;
}
@keyframes pulseDot {
    0%, 100% { box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.35); }
    50%      { box-shadow: 0 0 0 8px rgba(250, 204, 21, 0); }
}

.hero-title {
    font-size: clamp(1.8rem, 5.5vw, 3.2rem);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.hero-desc {
    font-size: clamp(0.9rem, 2.2vw, 1.05rem);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 40px;
    line-height: 1.9;
}
.hero-desc strong {
    color: var(--purple-700);
    font-weight: 700;
    padding: 1px 6px;
    background: linear-gradient(120deg, transparent 0%, rgba(250, 204, 21, 0.35) 0%, rgba(250, 204, 21, 0.35) 100%, transparent 100%);
    background-size: 100% 45%;
    background-repeat: no-repeat;
    background-position: 0 88%;
}

/* Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-width: 120px;
    padding: 18px 20px;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(168, 85, 247, 0.18);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.08);
    transition: var(--transition);
}
.hero-stat:hover {
    transform: translateY(-4px);
    border-color: rgba(168, 85, 247, 0.4);
    box-shadow: 0 12px 30px rgba(124, 58, 237, 0.18);
}
.stat-icon {
    width: 36px; height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--purple-500), var(--accent-pink));
    border-radius: 10px;
    color: #fff;
    margin-bottom: 4px;
    box-shadow: 0 6px 14px rgba(168, 85, 247, 0.35);
}
.stat-icon svg { width: 20px; height: 20px; }
.hero-stat:nth-child(2) .stat-icon {
    background: linear-gradient(135deg, var(--accent-yellow), #f97316);
    box-shadow: 0 6px 14px rgba(250, 204, 21, 0.4);
}
.hero-stat:nth-child(3) .stat-icon {
    background: linear-gradient(135deg, var(--purple-700), var(--purple-400));
}
.stat-num {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--purple-700);
    line-height: 1;
}
.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============================================================
   TOOLBAR
   ============================================================ */
.toolbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 252, 245, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 20px;
    box-shadow: 0 4px 24px rgba(124, 58, 237, 0.06);
}
.toolbar-inner {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Search */
.search-box {
    position: relative;
    width: 100%;
}
.search-box .search-icon {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px; height: 20px;
    stroke: var(--purple-400);
    pointer-events: none;
    transition: var(--transition);
}
.search-box input {
    width: 100%;
    padding: 14px 52px 14px 20px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.92rem;
    font-weight: 500;
    outline: none;
    transition: var(--transition);
}
.search-box input::placeholder {
    color: var(--purple-300);
    font-weight: 400;
}
.search-box input:focus {
    border-color: var(--accent-purple);
    box-shadow: var(--shadow-glow);
    background: #fff;
}
.search-box input:focus + .search-icon {
    stroke: var(--accent-purple);
}

/* Filters */
.filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}
.filter-group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.filter-divider {
    width: 1px;
    height: 22px;
    background: var(--border-color);
    margin: 0 6px;
}
.filter-btn {
    padding: 8px 16px;
    border-radius: 100px;
    border: 2px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.filter-btn:hover {
    border-color: var(--purple-300);
    color: var(--purple-700);
    background: var(--purple-50);
    transform: translateY(-1px);
}
.filter-btn.active {
    background: linear-gradient(135deg, var(--purple-600), var(--purple-500));
    border-color: var(--purple-600);
    color: #fff;
    box-shadow: 0 6px 16px rgba(147, 51, 234, 0.35);
}
.filter-btn.active .filter-dot {
    background: var(--accent-yellow) !important;
}
.filter-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

/* ============================================================
   MAIN / GRID
   ============================================================ */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 32px 20px 80px;
}

.results-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
    padding-bottom: 14px;
    border-bottom: 2px dashed var(--border-color);
}
.results-count {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.results-count strong {
    color: var(--purple-700);
    font-weight: 800;
    padding: 2px 8px;
    background: var(--yellow-100);
    border-radius: 6px;
}
.clear-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 8px;
    transition: var(--transition);
}
.clear-btn:hover {
    color: var(--accent-pink);
    border-color: var(--accent-pink);
    background: #fdf2f8;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 18px;
}

/* ============================================================
   CARD
   ============================================================ */
.card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: var(--transition);
    overflow: hidden;
    isolation: isolate;
}

/* Gradient top accent line */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--purple-500), var(--accent-pink), var(--accent-yellow));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.card:hover::before {
    transform: scaleX(1);
}

/* Subtle radial glow on hover */
.card::after {
    content: '';
    position: absolute;
    top: -40%;
    right: -40%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.08) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
    z-index: -1;
    pointer-events: none;
}
.card:hover::after {
    opacity: 1;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--purple-200);
    transform: translateY(-6px);
    box-shadow: 0 20px 44px rgba(124, 58, 237, 0.16);
}

.card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

/* Platform badges */
.platform-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 100px;
    letter-spacing: 0.2px;
    position: relative;
    overflow: hidden;
}
.platform-badge::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 6px currentColor;
}
.platform-instagram { background: linear-gradient(135deg, #fce7f3, #fbcfe8); color: #be185d; border: 1px solid #f9a8d4; }
.platform-rubika    { background: linear-gradient(135deg, #ede9fe, #ddd6fe); color: #6d28d9; border: 1px solid #c4b5fd; }
.platform-eitaa     { background: linear-gradient(135deg, #cffafe, #a5f3fc); color: #0e7490; border: 1px solid #67e8f9; }
.platform-bale      { background: linear-gradient(135deg, #d1fae5, #a7f3d0); color: #047857; border: 1px solid #6ee7b7; }

.category-tag {
    font-size: 0.68rem;
    color: var(--purple-700);
    background: var(--yellow-100);
    padding: 3px 10px;
    border-radius: 6px;
    white-space: nowrap;
    font-weight: 600;
    border: 1px solid var(--yellow-200);
}

.card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.5;
    word-break: break-word;
    transition: color 0.3s;
}
.card:hover .card-title {
    color: var(--purple-700);
}

.card-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
    opacity: 0.85;
}

.card-link {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--purple-700);
    text-decoration: none;
    padding: 10px 14px;
    background: linear-gradient(135deg, var(--purple-50), var(--yellow-50));
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-top: 6px;
    transition: var(--transition);
}
.card-link span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.card-link svg {
    width: 15px; height: 15px;
    transition: transform 0.3s;
}
.card:hover .card-link {
    background: linear-gradient(135deg, var(--purple-600), var(--purple-500));
    color: #fff;
    border-color: var(--purple-600);
    box-shadow: 0 6px 16px rgba(147, 51, 234, 0.35);
}
.card:hover .card-link svg {
    transform: translateX(-4px);
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--text-muted);
}
.empty svg {
    width: 64px; height: 64px;
    stroke: var(--purple-300);
    margin-bottom: 16px;
    opacity: 0.7;
}
.empty p {
    font-size: 0.95rem;
    font-weight: 500;
}

/* ============================================================
   SUBMIT SECTION
   ============================================================ */
.submit-section {
    position: relative;
    padding: 80px 20px;
    background: linear-gradient(135deg, var(--purple-700) 0%, var(--purple-800) 50%, #4c1d95 100%);
    overflow: hidden;
    isolation: isolate;
}
.submit-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle, rgba(250, 204, 21, 0.15) 1px, transparent 1px);
    background-size: 24px 24px;
    mask-image: radial-gradient(ellipse at center, #000 40%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 40%, transparent 85%);
    pointer-events: none;
}
.submit-section::after {
    content: '';
    position: absolute;
    top: -150px; left: -150px;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(250, 204, 21, 0.35) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.submit-wrapper {
    position: relative;
    z-index: 2;
    max-width: 720px;
    margin: 0 auto;
}
.submit-container {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.5);
}
.submit-header {
    text-align: center;
    margin-bottom: 28px;
}
.submit-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--accent-yellow), #f97316);
    border-radius: 16px;
    color: #fff;
    margin-bottom: 16px;
    box-shadow: 0 10px 24px rgba(250, 204, 21, 0.45);
}
.submit-icon svg { width: 28px; height: 28px; }

.submit-header h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--text-primary);
}
.submit-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 500px;
    margin: 0 auto;
}

.submit-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
}
.required {
    color: var(--accent-pink);
    font-weight: 700;
}
.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 500;
    outline: none;
    transition: var(--transition);
    width: 100%;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--purple-300);
    font-weight: 400;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-purple);
    box-shadow: var(--shadow-glow);
    background: #fff;
}
.form-group textarea {
    resize: vertical;
    min-height: 70px;
}

.submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--purple-600), var(--purple-500));
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    align-self: stretch;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 24px rgba(147, 51, 234, 0.35);
}
.submit-btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(250, 204, 21, 0.35), transparent);
    transition: left 0.7s;
}
.submit-btn:hover {
    background: linear-gradient(135deg, var(--purple-700), var(--purple-600));
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(147, 51, 234, 0.45);
}
.submit-btn:hover::before {
    left: 100%;
}
.submit-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

.form-message {
    font-size: 0.85rem;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    min-height: 24px;
    font-weight: 500;
    text-align: center;
}
.form-message.success {
    color: #047857;
    background: #d1fae5;
    border: 1px solid #6ee7b7;
}
.form-message.error {
    color: #be123c;
    background: #ffe4e6;
    border: 1px solid #fda4af;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--text-primary);
    color: #c4b5fd;
    padding: 40px 20px 30px;
    text-align: center;
    position: relative;
}
.footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--purple-500), var(--accent-pink), var(--accent-yellow));
}
.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.footer-brand .footer-logo {
    font-size: 1.3rem;
    font-weight: 800;
    color: #fff;
    display: inline-block;
    margin-bottom: 4px;
}
.footer-brand p {
    font-size: 0.8rem;
    opacity: 0.8;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}
.footer-links a {
    color: #ddd6fe;
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    transition: var(--transition);
    padding: 4px 8px;
    border-radius: 6px;
}
.footer-links a:hover {
    color: var(--accent-yellow);
    background: rgba(250, 204, 21, 0.1);
}
.footer-note {
    font-size: 0.72rem;
    line-height: 1.9;
    opacity: 0.65;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.heart { color: var(--accent-pink); }

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-top {
    position: fixed;
    bottom: 28px;
    left: 28px;
    width: 48px; height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--purple-600), var(--purple-500));
    border: none;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 10px 24px rgba(147, 51, 234, 0.35);
}
.back-top.visible {
    opacity: 1;
    visibility: visible;
}
.back-top:hover {
    background: linear-gradient(135deg, var(--accent-yellow), #f97316);
    transform: translateY(-4px);
    box-shadow: 0 14px 30px rgba(250, 204, 21, 0.45);
}
.back-top svg { width: 22px; height: 22px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
    .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .hero { padding: 50px 16px 70px; }
    .hero-stats { gap: 10px; }
    .hero-stat { min-width: 100px; padding: 14px 12px; flex: 1; }
    .stat-num { font-size: 1.35rem; }
    .stat-icon { width: 30px; height: 30px; }
    .stat-icon svg { width: 16px; height: 16px; }

    .toolbar { padding: 12px 14px; }
    .search-box input { font-size: 0.85rem; padding: 12px 46px 12px 16px; }
    .filter-btn { font-size: 0.72rem; padding: 7px 12px; }
    .filter-divider { display: none; }

    .container { padding: 20px 14px 60px; }
    .grid { grid-template-columns: 1fr; gap: 12px; }
    .card { padding: 16px; }
    .card-title { font-size: 0.92rem; }
    .card-desc { font-size: 0.76rem; }

    .submit-section { padding: 50px 14px; }
    .submit-container { padding: 28px 20px; border-radius: var(--radius-lg); }
    .submit-header h2 { font-size: 1.3rem; }
    .form-row { grid-template-columns: 1fr; }

    .footer-links { gap: 12px; }
    .back-top { bottom: 20px; left: 20px; width: 44px; height: 44px; }
}

@media (min-width: 1400px) {
    .grid { grid-template-columns: repeat(4, 1fr); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}
/* ============================================================
   HERO — Compact + Brand + Social Promo
   ============================================================ */

/* --- کوچک‌تر شدن هدر --- */
.hero {
    padding: 40px 20px 80px !important;
}
.hero-content {
    max-width: 780px !important;
}
.hero-title {
    font-size: clamp(1.5rem, 4.2vw, 2.4rem) !important;
    margin-bottom: 14px !important;
}
.hero-desc {
    font-size: clamp(0.85rem, 2vw, 0.95rem) !important;
    margin-bottom: 28px !important;
    line-height: 1.8 !important;
}
.hero-stats {
    gap: 14px !important;
}
.hero-stat {
    padding: 14px 16px !important;
    min-width: 105px !important;
}
.stat-num {
    font-size: 1.4rem !important;
}
.stat-icon {
    width: 30px !important;
    height: 30px !important;
}
.stat-icon svg {
    width: 16px !important;
    height: 16px !important;
}
.stat-label {
    font-size: 0.7rem !important;
}

/* --- لوگو + لینک سایت اصلی --- */
.brand-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    padding: 10px 10px 10px 10px;
    
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    
    border-radius: 100px;
    margin-bottom: 18px;
    
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.brand-link:hover {
    transform: translateY(-2px);
    border-color: rgba(168, 85, 247, 0.5);
    box-shadow: 0 12px 30px rgba(124, 58, 237, 0.2);
    background: rgba(255, 255, 255, 0.92);
}
.brand-logo {
    width: 100px;
    height: 100px;
    object-fit: contain;
    border-radius: 50%;
    background: #fff;
    padding: 4px;
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.15);
    transition: transform 0.4s;
}
.brand-link:hover .brand-logo {
    transform: rotate(-8deg) scale(1.06);
}
.brand-caption {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.25;
    text-align: right;
}
.brand-caption-small {
    font-size: 0.9rem;
    color: #7c3aed;
    font-weight: 500;
    opacity: 0.85;
}
.brand-caption-main {
    font-size: 0.95rem;
    color: #1e1b4b;
    font-weight: 800;
    letter-spacing: 0.3px;
    direction: ltr;
}

/* --- نمایش ویژه شبکه‌های اجتماعی --- */
.social-promo {
    margin-top: 32px;
    padding: 20px 22px;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: 22px;
    box-shadow: 0 14px 36px rgba(124, 58, 237, 0.12);
    position: relative;
    overflow: hidden;
    isolation: isolate;
}
/* نوار گرادیان رنگی بالای کارت */
.social-promo::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg,
        #f59e0b 0%,
        #ec4899 35%,
        #8b5cf6 70%,
        #06b6d4 100%);
    border-radius: 22px 22px 0 0;
}
.social-promo-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}
.social-promo-title span:not(.social-promo-line) {
    font-size: 0.85rem;
    font-weight: 700;
    color: #6b21a8;
    white-space: nowrap;
}
.social-promo-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.35), transparent);
    max-width: 80px;
}

.social-promo-list {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 0;
    margin: 0;
}

.social-promo-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 14px;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 700;
    color: #fff;
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}
.social-promo-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.18), transparent 60%);
    pointer-events: none;
    opacity: 0.9;
}
.social-promo-btn:hover {
    transform: translateY(-3px) scale(1.03);
}
.social-promo-btn:active {
    transform: translateY(-1px) scale(0.98);
}
.social-promo-icon {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.social-promo-icon svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.25));
}
.social-promo-label {
    line-height: 1;
    letter-spacing: 0.2px;
}

/* رنگ اختصاصی هر شبکه */
.social-rss {
    background: linear-gradient(135deg, #f97316, #f59e0b);
    box-shadow: 0 8px 18px rgba(249, 115, 22, 0.4);
}
.social-rss:hover {
    box-shadow: 0 12px 24px rgba(249, 115, 22, 0.55);
}

.social-instagram {
    background: linear-gradient(135deg, #f58529 0%, #dd2a7b 45%, #8134af 80%, #515bd4 100%);
    box-shadow: 0 8px 18px rgba(221, 42, 123, 0.4);
}
.social-instagram:hover {
    box-shadow: 0 12px 24px rgba(221, 42, 123, 0.55);
}

.social-rubika {
    background: linear-gradient(135deg, #8b5cf6, #6d28d9);
    box-shadow: 0 8px 18px rgba(139, 92, 246, 0.4);
}
.social-rubika:hover {
    box-shadow: 0 12px 24px rgba(139, 92, 246, 0.55);
}

.social-aparat {
    background: linear-gradient(135deg, #ec4899, #db2777);
    box-shadow: 0 8px 18px rgba(236, 72, 153, 0.4);
}
.social-aparat:hover {
    box-shadow: 0 12px 24px rgba(236, 72, 153, 0.55);
}

/* --- ریسپانسیو --- */
@media (max-width: 640px) {
    .hero {
        padding: 28px 16px 70px !important;
    }
    .brand-link {
        padding: 6px 14px 6px 6px;
        gap: 8px;
    }
    .brand-logo {
        width: 38px;
        height: 38px;
    }
    .brand-caption-main {
        font-size: 0.82rem;
    }
    .brand-caption-small {
        font-size: 0.62rem;
    }

    .hero-stats {
        gap: 8px !important;
    }
    .hero-stat {
        padding: 12px 10px !important;
        min-width: 88px !important;
    }

    .social-promo {
        margin-top: 24px;
        padding: 16px 14px;
        border-radius: 18px;
    }
    .social-promo-title span:not(.social-promo-line) {
        font-size: 0.78rem;
    }
    .social-promo-list {
        gap: 8px;
    }
    .social-promo-btn {
        padding: 8px 12px;
        font-size: 0.72rem;
        gap: 6px;
        flex: 1 1 calc(50% - 8px);
        justify-content: center;
    }
    .social-promo-icon {
        width: 18px;
        height: 18px;
    }
}
/* --- بج آپارات --- */
.platform-aparat {
    background: linear-gradient(135deg, #fff1f2, #ffe4e6);
    color: #be123c;
    border: 1px solid #fda4af;
}