@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

:root {
    --bg-900: #040d1a;
    --bg-800: #071428;
    --bg-700: #0a1d3a;
    --bg-600: #0e2650;
    --bg-500: #122f63;
    --accent: #2f80ed;
    --accent-bright: #4da3ff;
    --accent-glow: rgba(47, 128, 237, 0.35);
    --accent2: #00d4ff;
    --accent2-glow: rgba(0, 212, 255, 0.2);
    --text-100: #f0f6ff;
    --text-200: #b8cfea;
    --text-300: #7a9cc2;
    --text-400: #4a6a96;
    --border: rgba(47, 128, 237, 0.18);
    --border-bright: rgba(77, 163, 255, 0.35);
    --card: rgba(7, 20, 40, 0.85);
    --glass: rgba(14, 38, 80, 0.5);
    --success: #00e5a0;
    --warning: #f5a623;
    --danger: #ff4d6a;
    --radius: 14px;
    --radius-lg: 22px;
    --shadow: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-accent: 0 0 40px rgba(47, 128, 237, 0.2);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg-900);
    color: var(--text-100);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Animated background */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 10%, rgba(47,128,237,0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(0,212,255,0.07) 0%, transparent 60%),
        radial-gradient(ellipse 40% 60% at 50% 50%, rgba(18,47,99,0.3) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

body > * { position: relative; z-index: 1; }

/* Typography */
h1, h2, h3, h4, h5 { font-family: 'Syne', sans-serif; font-weight: 700; line-height: 1.2; }

/* Navbar */
.navbar {
    background: rgba(4, 13, 26, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-family: 'Syne', sans-serif;
    font-size: 1.6rem;
    font-weight: 800;
    text-decoration: none;
    background: linear-gradient(135deg, var(--accent-bright), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.navbar-brand span {
    display: inline-block;
    width: 8px; height: 8px;
    background: var(--accent2);
    border-radius: 50%;
    margin-left: 2px;
    vertical-align: middle;
    position: relative;
    top: -2px;
    box-shadow: 0 0 12px var(--accent2);
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
}

.navbar-nav a {
    color: var(--text-200);
    text-decoration: none;
    padding: 0.45rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.navbar-nav a:hover, .navbar-nav a.active {
    color: var(--text-100);
    background: var(--glass);
}

.credit-badge {
    background: linear-gradient(135deg, rgba(47,128,237,0.25), rgba(0,212,255,0.15));
    border: 1px solid var(--border-bright);
    border-radius: 20px;
    padding: 0.3rem 0.9rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-bright);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.credit-badge::before {
    content: '⚡';
    font-size: 0.75rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.4rem;
    border-radius: 10px;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #1a6bcf);
    color: #fff;
    box-shadow: 0 4px 20px rgba(47,128,237,0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-bright), var(--accent));
    box-shadow: 0 6px 30px rgba(47,128,237,0.6);
    transform: translateY(-1px);
    color: #fff;
}

.btn-secondary {
    background: var(--glass);
    color: var(--text-200);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-600);
    color: var(--text-100);
    border-color: var(--border-bright);
}

.btn-success {
    background: linear-gradient(135deg, #00b87a, #008f5e);
    color: #fff;
    box-shadow: 0 4px 16px rgba(0,184,122,0.35);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--success), #00b87a);
    box-shadow: 0 6px 24px rgba(0,229,160,0.45);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, #e03050, #b01a30);
    color: #fff;
}

.btn-danger:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-sm { padding: 0.38rem 0.9rem; font-size: 0.82rem; border-radius: 7px; }
.btn-lg { padding: 0.85rem 2rem; font-size: 1rem; border-radius: 12px; }
.btn-full { width: 100%; }

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Cards */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(16px);
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body { padding: 1.5rem; }
.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    background: rgba(0,0,0,0.15);
}

/* Forms */
.form-group { margin-bottom: 1.25rem; }

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-200);
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 0.75rem;
}

.form-control {
    width: 100%;
    background: rgba(7,20,40,0.7);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.72rem 1rem;
    color: var(--text-100);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.95rem;
    transition: all 0.2s;
    outline: none;
    -webkit-appearance: none;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: rgba(10,29,58,0.9);
}

.form-control::placeholder { color: var(--text-400); }

select.form-control {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%234da3ff' d='M0 0l6 8 6-8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

textarea.form-control { min-height: 100px; resize: vertical; }

/* Alerts / Flash */
.alert {
    padding: 0.9rem 1.2rem;
    border-radius: 10px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
}

.alert-success { background: rgba(0,229,160,0.1); border-color: rgba(0,229,160,0.3); color: var(--success); }
.alert-danger  { background: rgba(255,77,106,0.1); border-color: rgba(255,77,106,0.3); color: var(--danger); }
.alert-warning { background: rgba(245,166,35,0.1); border-color: rgba(245,166,35,0.3); color: var(--warning); }
.alert-info    { background: rgba(47,128,237,0.1); border-color: rgba(47,128,237,0.3); color: var(--accent-bright); }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.container-sm { max-width: 600px; margin: 0 auto; padding: 0 1.5rem; }
.page-wrapper { padding: 2rem 0 4rem; }

/* Grid */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Platform selector */
.platform-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.platform-btn {
    position: relative;
    cursor: pointer;
}

.platform-btn input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0; height: 0;
}

.platform-btn label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.1rem 0.8rem;
    border-radius: 12px;
    border: 2px solid var(--border);
    background: rgba(7,20,40,0.5);
    cursor: pointer;
    transition: all 0.22s;
    text-align: center;
}

.platform-btn label:hover {
    border-color: var(--border-bright);
    background: var(--glass);
}

.platform-btn input:checked + label {
    border-color: var(--accent);
    background: rgba(47,128,237,0.15);
    box-shadow: 0 0 24px rgba(47,128,237,0.2);
}

.platform-icon { font-size: 1.8rem; }
.platform-name { font-size: 0.8rem; font-weight: 600; color: var(--text-200); }

/* Hashtag output */
.hashtag-output {
    background: rgba(4,13,26,0.8);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    min-height: 120px;
    font-size: 0.95rem;
    color: var(--text-200);
    line-height: 1.9;
    word-break: break-word;
}

.hashtag-output .tag {
    display: inline-block;
    color: var(--accent-bright);
    font-weight: 500;
    margin-right: 0.25rem;
    transition: color 0.15s;
}

.hashtag-output .tag:hover { color: var(--accent2); cursor: pointer; }

.copy-btn-area {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1rem;
}

/* Stats cards */
.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: border-color 0.2s;
}

.stat-card:hover { border-color: var(--border-bright); }

.stat-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(47,128,237,0.25), rgba(0,212,255,0.1));
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.stat-value { font-size: 1.8rem; font-family: 'Syne', sans-serif; font-weight: 800; color: var(--text-100); }
.stat-label { font-size: 0.78rem; color: var(--text-300); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }

/* Table */
.table-wrapper { overflow-x: auto; border-radius: var(--radius); }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

thead tr {
    background: rgba(14,38,80,0.5);
    border-bottom: 1px solid var(--border);
}

th {
    padding: 0.9rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-300);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

td {
    padding: 0.9rem 1rem;
    color: var(--text-200);
    border-bottom: 1px solid rgba(47,128,237,0.08);
}

tbody tr:hover { background: rgba(47,128,237,0.04); }
tbody tr:last-child td { border-bottom: none; }

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.65rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.badge-success { background: rgba(0,229,160,0.15); color: var(--success); border: 1px solid rgba(0,229,160,0.3); }
.badge-warning { background: rgba(245,166,35,0.15); color: var(--warning); border: 1px solid rgba(245,166,35,0.3); }
.badge-danger  { background: rgba(255,77,106,0.15); color: var(--danger); border: 1px solid rgba(255,77,106,0.3); }
.badge-info    { background: rgba(47,128,237,0.15); color: var(--accent-bright); border: 1px solid var(--border-bright); }

/* Auth pages */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 480px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow), var(--shadow-accent);
    animation: fadeSlideUp 0.5s cubic-bezier(0.4,0,0.2,1);
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo-text {
    font-family: 'Syne', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-bright), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-subtitle {
    font-size: 0.85rem;
    color: var(--text-300);
    margin-top: 0.25rem;
}

/* Sidebar layout */
.app-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: calc(100vh - 68px);
}

.sidebar {
    background: rgba(4,13,26,0.7);
    border-right: 1px solid var(--border);
    padding: 1.5rem 0;
    position: sticky;
    top: 68px;
    height: calc(100vh - 68px);
    overflow-y: auto;
    backdrop-filter: blur(10px);
}

.sidebar-section { margin-bottom: 0.5rem; }

.sidebar-label {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.75rem 1.5rem 0.4rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.5rem;
    color: var(--text-300);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.18s;
    border-left: 3px solid transparent;
    margin: 0.1rem 0;
}

.sidebar-link:hover {
    color: var(--text-100);
    background: var(--glass);
    border-left-color: var(--border-bright);
}

.sidebar-link.active {
    color: var(--accent-bright);
    background: rgba(47,128,237,0.12);
    border-left-color: var(--accent);
}

.sidebar-icon { font-size: 1.1rem; width: 20px; text-align: center; }

.main-content { padding: 2rem 2.5rem; overflow-y: auto; }

/* Hero section */
.hero {
    text-align: center;
    padding: 5rem 2rem 3rem;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(47,128,237,0.12);
    border: 1px solid var(--border-bright);
    border-radius: 20px;
    padding: 0.35rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-bright);
    margin-bottom: 1.5rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    background: linear-gradient(135deg, var(--text-100) 0%, var(--accent-bright) 60%, var(--accent2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-300);
    max-width: 580px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

/* Loading */
.loading-spinner {
    display: inline-block;
    width: 20px; height: 20px;
    border: 2px solid rgba(255,255,255,0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.animate-in { animation: fadeSlideUp 0.45s cubic-bezier(0.4,0,0.2,1) both; }

/* Section title */
.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-100);
    margin-bottom: 0.35rem;
}

.section-subtitle {
    font-size: 0.88rem;
    color: var(--text-300);
    margin-bottom: 1.5rem;
}

/* Pricing card */
.pricing-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.25s;
}

.pricing-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-accent);
    transform: translateY(-3px);
}

.pricing-card.featured {
    border-color: var(--accent);
    background: linear-gradient(135deg, rgba(47,128,237,0.15), rgba(0,212,255,0.05));
}

.pricing-card.featured::before {
    content: '★ Popüler';
    position: absolute;
    top: 1rem; right: 1rem;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.65rem;
    border-radius: 20px;
    letter-spacing: 0.04em;
}

.pricing-credits { font-size: 3rem; font-family: 'Syne', sans-serif; font-weight: 800; color: var(--accent-bright); }
.pricing-label   { font-size: 0.8rem; color: var(--text-300); margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 0.05em; }
.pricing-price   { font-size: 1.8rem; font-family: 'Syne', sans-serif; font-weight: 700; color: var(--text-100); margin: 0.5rem 0 1.5rem; }

/* Copy toast */
#copy-toast {
    position: fixed;
    bottom: 2rem; right: 2rem;
    background: linear-gradient(135deg, var(--accent), #1a6bcf);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 8px 30px rgba(47,128,237,0.5);
    z-index: 9999;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    pointer-events: none;
}

#copy-toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* Payment warning */
.payment-notice {
    background: linear-gradient(135deg, rgba(245,166,35,0.12), rgba(245,166,35,0.06));
    border: 1px solid rgba(245,166,35,0.35);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    font-size: 0.88rem;
    color: var(--warning);
    line-height: 1.6;
    margin: 1rem 0;
}

.payment-notice-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 0.1rem; }

/* History list */
.history-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(7,20,40,0.5);
    margin-bottom: 0.75rem;
    transition: border-color 0.2s;
}

.history-item:hover { border-color: var(--border-bright); }

.history-platform-badge {
    padding: 0.3rem 0.7rem;
    border-radius: 7px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    flex-shrink: 0;
}

.platform-youtube { background: rgba(255,0,0,0.15); color: #ff5252; border: 1px solid rgba(255,0,0,0.25); }
.platform-instagram { background: rgba(193,53,132,0.15); color: #f06292; border: 1px solid rgba(193,53,132,0.25); }
.platform-tiktok { background: rgba(105,201,208,0.15); color: #4dd0e1; border: 1px solid rgba(105,201,208,0.25); }

/* Admin sidebar */
.admin-badge {
    background: linear-gradient(135deg, rgba(255,77,106,0.2), rgba(255,100,50,0.1));
    border: 1px solid rgba(255,77,106,0.3);
    border-radius: 6px;
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--danger);
    padding: 0.1rem 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-left: auto;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
    gap: 0.25rem;
}

.tab-btn {
    padding: 0.65rem 1.25rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-300);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all 0.18s;
    font-family: 'DM Sans', sans-serif;
}

.tab-btn:hover { color: var(--text-100); }
.tab-btn.active { color: var(--accent-bright); border-bottom-color: var(--accent); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-400);
}

.empty-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state h3 { color: var(--text-300); margin-bottom: 0.5rem; }

/* Responsive */
@media (max-width: 768px) {
    .app-layout { grid-template-columns: 1fr; }
    .sidebar { display: none; }
    .main-content { padding: 1.25rem; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .platform-selector { grid-template-columns: repeat(3, 1fr); }
    .navbar { padding: 0 1rem; }
    .auth-card { padding: 1.75rem; }
}

/* Utility */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-muted  { color: var(--text-300); }
.text-sm     { font-size: 0.85rem; }
.text-xs     { font-size: 0.75rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.fw-bold { font-weight: 700; }
.w-100 { width: 100%; }