/* ==========================================
   InstaDown Pro - Main Stylesheet
   Modern & Clean Design
   ========================================== */

:root {
    --purple: #8B5CF6;
    --pink: #EC4899;
    --orange: #F97316;
    --blue: #3B82F6;
    --green: #10B981;
    --dark: #0F0F23;
    --darker: #07071A;
    --card-bg: #1A1A35;
    --card-border: rgba(139, 92, 246, 0.15);
    --text-primary: #F8F8FF;
    --text-secondary: #A0A0C0;
    --gradient: linear-gradient(135deg, #8B5CF6, #EC4899);
    --gradient-alt: linear-gradient(135deg, #F97316, #EC4899);
    --shadow: 0 20px 60px rgba(139, 92, 246, 0.15);
    --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.3);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --red: #EF4444;
    --sky: #38BDF8;
    --teal: #14B8A6;
    --dark-card: #111128;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--purple); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--pink); }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--darker); }
::-webkit-scrollbar-thumb { background: var(--purple); border-radius: 4px; }

/* ==========================================
   TOP AD BAR
   ========================================== */
.top-ad-bar {
    background: var(--darker);
    padding: 10px 0;
    border-bottom: 1px solid rgba(139,92,246,0.1);
}

/* ==========================================
   NAVBAR
   ========================================== */
.navbar {
    background: rgba(15, 15, 35, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(139,92,246,0.2);
    padding: 12px 0;
    z-index: 1000;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.brand-logo i {
    font-size: 26px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.brand-logo span {
    font-size: 20px;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-toggler {
    border: 1px solid rgba(139,92,246,0.4);
    padding: 6px 10px;
}
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(139,92,246,1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.nav-link {
    color: var(--text-secondary) !important;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 14px !important;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
    color: var(--text-primary) !important;
    background: rgba(139,92,246,0.15);
}
.nav-link.active {
    color: var(--purple) !important;
}

/* Dropdown menus (Platforms / Convert) — match the dark theme */
.dropdown-menu {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    padding: 8px;
    max-height: 70vh;
    overflow-y: auto;
}
.dropdown-item {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    padding: 8px 12px;
    transition: var(--transition);
}
.dropdown-item i {
    width: 18px;
    text-align: center;
}
.dropdown-item:hover, .dropdown-item:focus {
    background: rgba(139,92,246,0.15);
    color: var(--text-primary);
}
.dropdown-item.active {
    background: rgba(139,92,246,0.2);
    color: var(--purple);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero-section {
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -200px; left: 50%;
    transform: translateX(-50%);
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(139,92,246,0.15);
    border: 1px solid rgba(139,92,246,0.3);
    color: var(--purple);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(32px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
}
.hero-title .gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* ==========================================
   DOWNLOAD FORM
   ========================================== */
.download-box {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 32px;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.download-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient);
}

.tool-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
}

.tool-icon {
    width: 56px; height: 56px;
    border-radius: 16px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    flex-shrink: 0;
}

.tool-icon.orange { background: linear-gradient(135deg, #F97316, #EC4899); }
.tool-icon.blue   { background: linear-gradient(135deg, #3B82F6, #8B5CF6); }
.tool-icon.green  { background: linear-gradient(135deg, #10B981, #3B82F6); }
.tool-icon.pink   { background: linear-gradient(135deg, #EC4899, #F97316); }

.tool-title h2 { font-size: 24px; font-weight: 700; margin-bottom: 4px; }
.tool-title p  { color: var(--text-secondary); font-size: 14px; }

.url-input-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.url-input {
    flex: 1;
    min-width: 280px;
    background: rgba(255,255,255,0.05);
    border: 2px solid rgba(139,92,246,0.2);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 14px 20px;
    font-size: 15px;
    transition: var(--transition);
    outline: none;
}
.url-input::placeholder { color: var(--text-secondary); }
.url-input:focus {
    border-color: var(--purple);
    background: rgba(139,92,246,0.08);
    box-shadow: 0 0 0 4px rgba(139,92,246,0.1);
}

.btn-download {
    background: var(--gradient);
    border: none;
    color: white;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 10px;
}
.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(139,92,246,0.4);
    color: white;
}
.btn-download:disabled {
    opacity: 0.7;
    transform: none;
    cursor: not-allowed;
}

.btn-paste {
    background: rgba(139,92,246,0.15);
    border: 1px solid rgba(139,92,246,0.3);
    color: var(--purple);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}
.btn-paste:hover {
    background: rgba(139,92,246,0.25);
    color: var(--text-primary);
}

.input-helper {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
}

/* ==========================================
   RESULTS SECTION
   ========================================== */
.results-section {
    display: none;
    margin-top: 24px;
}
.results-section.show { display: block; }

.result-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(139,92,246,0.2);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    transition: var(--transition);
}
.result-card:hover {
    border-color: rgba(139,92,246,0.4);
    background: rgba(139,92,246,0.05);
}

.result-thumb {
    width: 100px; height: 100px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.result-info { flex: 1; min-width: 200px; }
.result-title { font-weight: 600; margin-bottom: 6px; }
.result-meta { color: var(--text-secondary); font-size: 13px; margin-bottom: 12px; }

.result-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.btn-dl {
    background: var(--gradient);
    border: none;
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}
.btn-dl:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139,92,246,0.35);
    color: white;
}

.btn-dl.secondary {
    background: rgba(139,92,246,0.15);
    border: 1px solid rgba(139,92,246,0.3);
    color: var(--purple);
}
.btn-dl.secondary:hover {
    background: rgba(139,92,246,0.25);
    color: var(--purple);
    box-shadow: none;
}

.quality-badge {
    display: inline-block;
    background: rgba(16,185,129,0.15);
    color: var(--green);
    border: 1px solid rgba(16,185,129,0.3);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-left: 8px;
}

/* ==========================================
   LOADING STATE
   ========================================== */
.loading-box {
    display: none;
    text-align: center;
    padding: 40px;
}
.loading-box.show { display: block; }

.spinner {
    width: 50px; height: 50px;
    border: 3px solid rgba(139,92,246,0.2);
    border-top-color: var(--purple);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.progress-bar-track {
    width: 100%;
    max-width: 320px;
    height: 8px;
    background: rgba(139,92,246,0.15);
    border-radius: 999px;
    margin: 0 auto 10px;
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(135deg, var(--purple), var(--pink));
    border-radius: 999px;
    transition: width 0.4s ease;
}
.progress-percent {
    color: var(--purple);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 12px;
}

.loading-text { color: var(--text-secondary); font-size: 15px; }

/* ==========================================
   ERROR / ALERT
   ========================================== */
.alert-custom {
    display: none;
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    margin-top: 16px;
    font-size: 14px;
    align-items: center;
    gap: 12px;
}
.alert-custom.show { display: flex; }
.alert-error {
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.3);
    color: #FCA5A5;
}
.alert-success {
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.3);
    color: #6EE7B7;
}

/* ==========================================
   TOOLS GRID (Homepage)
   ========================================== */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.tool-card {
    display: block;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}
.tool-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient);
    opacity: 0;
    transition: var(--transition);
}
.tool-card:hover {
    transform: translateY(-6px);
    border-color: rgba(139,92,246,0.5);
    box-shadow: var(--shadow);
    color: var(--text-primary);
}
.tool-card:hover::before { opacity: 0.06; }

.tool-card-icon {
    width: 64px; height: 64px;
    border-radius: 18px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
    margin: 0 auto 18px;
}
.tool-card-icon.orange { background: linear-gradient(135deg, #F97316, #EC4899); }
.tool-card-icon.blue   { background: linear-gradient(135deg, #3B82F6, #8B5CF6); }
.tool-card-icon.green  { background: linear-gradient(135deg, #10B981, #3B82F6); }
.tool-card-icon.pink   { background: linear-gradient(135deg, #EC4899, #F97316); }
.tool-card-icon.red  { background: linear-gradient(135deg, #EF4444, #DC2626); }
.tool-card-icon.sky  { background: linear-gradient(135deg, #38BDF8, #0284C7); }
.tool-card-icon.teal { background: linear-gradient(135deg, #14B8A6, #0D9488); }
.tool-card-icon.dark { background: linear-gradient(135deg, #374151, #111827); }

.tool-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.tool-card p  { color: var(--text-secondary); font-size: 13px; }

.tool-card .tool-arrow {
    position: absolute;
    top: 16px; right: 16px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition);
}
.tool-card:hover .tool-arrow {
    color: var(--purple);
    transform: translateX(4px);
}

/* ==========================================
   FEATURES SECTION
   ========================================== */
.features-section {
    padding: 70px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}
.section-title h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
}
.section-title p { color: var(--text-secondary); font-size: 16px; }

.feature-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}
.feature-item:hover {
    border-color: rgba(139,92,246,0.4);
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
}
.feature-item i {
    font-size: 32px;
    margin-bottom: 16px;
    display: block;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.feature-item h5 { font-weight: 700; margin-bottom: 8px; }
.feature-item p  { color: var(--text-secondary); font-size: 14px; }

/* ==========================================
   HOW TO USE
   ========================================== */
.steps-section {
    padding: 70px 0;
    background: rgba(139,92,246,0.03);
    border-top: 1px solid rgba(139,92,246,0.1);
    border-bottom: 1px solid rgba(139,92,246,0.1);
}

.step-card {
    text-align: center;
    padding: 20px;
}
.step-number {
    width: 52px; height: 52px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: white;
    margin: 0 auto 16px;
}
.step-card h5 { font-weight: 700; margin-bottom: 8px; }
.step-card p  { color: var(--text-secondary); font-size: 14px; }

/* ==========================================
   MIDDLE AD
   ========================================== */
.mid-ad { margin: 30px 0; }

/* ==========================================
   FAQ SECTION
   ========================================== */
.faq-section { padding: 70px 0; }

.accordion-item {
    background: var(--card-bg) !important;
    border: 1px solid var(--card-border) !important;
    border-radius: var(--radius-sm) !important;
    margin-bottom: 12px;
    overflow: hidden;
}
.accordion-button {
    background: var(--card-bg) !important;
    color: var(--text-primary) !important;
    font-weight: 600;
    font-size: 15px;
    border: none;
    box-shadow: none !important;
}
.accordion-button:not(.collapsed) {
    background: rgba(139,92,246,0.08) !important;
    color: var(--purple) !important;
}
.accordion-button::after {
    filter: invert(1) brightness(2);
}
.accordion-body {
    background: rgba(139,92,246,0.04);
    color: var(--text-secondary);
    font-size: 14px;
    border-top: 1px solid var(--card-border);
}

/* ==========================================
   FOOTER
   ========================================== */
.footer-ad-bar {
    background: var(--darker);
    padding: 10px 0;
    border-top: 1px solid rgba(139,92,246,0.1);
}

.site-footer {
    background: var(--darker);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(139,92,246,0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-brand i {
    font-size: 28px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.footer-brand h5 {
    font-size: 20px;
    font-weight: 800;
    margin: 0;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc { color: var(--text-secondary); font-size: 14px; margin-bottom: 16px; }

.footer-badges { display: flex; gap: 10px; flex-wrap: wrap; }
.badge-item {
    background: rgba(139,92,246,0.12);
    border: 1px solid rgba(139,92,246,0.25);
    color: var(--purple);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.footer-heading {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 15px;
    margin-bottom: 16px;
}

.footer-links { list-style: none; padding: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.footer-links a:hover { color: var(--purple); padding-left: 4px; }
.footer-links a i { width: 14px; }

.steps-mini { display: flex; flex-direction: column; gap: 10px; }
.step-mini {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 13px;
}
.step-mini span {
    width: 24px; height: 24px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}

.footer-divider {
    border-color: rgba(139,92,246,0.15);
    margin: 40px 0 20px;
}

.footer-bottom { text-align: center; }
.footer-bottom p { color: var(--text-secondary); font-size: 13px; margin-bottom: 4px; }
.disclaimer { font-size: 12px !important; opacity: 0.6; }

/* ==========================================
   AD PLACEHOLDER
   ========================================== */
.ad-placeholder {
    background: rgba(255,255,255,0.03) !important;
    border: 2px dashed rgba(139,92,246,0.25) !important;
    color: var(--text-secondary) !important;
    border-radius: var(--radius-sm) !important;
}

/* ==========================================
   STATS BAR
   ========================================== */
.stats-bar {
    background: rgba(139,92,246,0.06);
    border: 1px solid rgba(139,92,246,0.15);
    border-radius: var(--radius);
    padding: 20px;
    margin: 30px 0;
}
.stat-item { text-align: center; }
.stat-num {
    font-size: 28px;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-label { color: var(--text-secondary); font-size: 13px; }

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
    .hero-section { padding: 50px 0 40px; }
    .url-input-group { flex-direction: column; }
    .url-input { min-width: unset; }
    .btn-download { justify-content: center; }
    .result-card { flex-direction: column; text-align: center; }
    .result-thumb { width: 100%; height: 200px; margin: 0 auto; }
    .result-actions { justify-content: center; }
    .download-box { padding: 20px; }
    .tool-header { flex-direction: column; text-align: center; }
    .navbar-nav { padding: 16px 0; }
}

/* ==========================================
   ANIMATIONS
   ========================================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.5s ease forwards; }

/* Progress bar for download */
.dl-progress {
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}
.dl-progress-bar {
    height: 100%;
    background: var(--gradient);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* ==========================================
   PWA Install Banner — small card, slides in from the right
   ========================================== */
.pwa-install-banner {
    position: fixed;
    top: 90px;
    right: 20px;
    z-index: 1020;
    width: 300px;
    max-width: calc(100vw - 32px);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: #fff;
    padding: 16px;
    border-radius: 14px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 12px;
    transform: translateX(130%);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease;
}
.pwa-install-banner.pwa-banner-show {
    transform: translateX(0);
    opacity: 1;
}
.pwa-banner-top {
    display: flex;
    align-items: center;
    gap: 12px;
}
.pwa-banner-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}
.pwa-banner-icon {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(139, 92, 246, 0.4);
}
.pwa-banner-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.pwa-banner-title {
    font-size: 14.5px;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.pwa-banner-subtitle {
    font-size: 12px;
    color: var(--text-secondary);
}
.pwa-banner-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    padding: 4px;
    flex-shrink: 0;
    border-radius: 6px;
    transition: var(--transition);
}
.pwa-banner-close:hover {
    color: #fff;
    background: rgba(255,255,255,0.08);
}
.pwa-banner-install {
    background: var(--gradient);
    color: #fff;
    border: none;
    padding: 10px 16px;
    border-radius: 9px;
    font-size: 13.5px;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    transition: var(--transition);
}
.pwa-banner-install:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}
@media (max-width: 576px) {
    .pwa-install-banner {
        top: auto;
        bottom: 16px;
        right: 16px;
        width: 270px;
    }
}