/* Inter Font Definitions (Self-Hosted) */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/inter-400.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/inter-500.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/inter-600.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/inter-700.woff2') format('woff2');
}

/* Light Mode Variables (Default) */
:root,
[data-theme="light"] {
    --bg-page: #f9fafb;
    --bg-surface: #ffffff;
    --bg-subtle: #f3f4f6;
    --border-color: #e5e7eb;
    --border-subtle: #f3f4f6;
    --text-main: #111827;
    --text-muted: #6b7280;
    --text-faint: #9ca3af;
    --primary: #059669;
    --primary-hover: #047857;
    --primary-subtle: #ecfdf5;
    --primary-border: #a7f3d0;
    --primary-text: #065f46;
    --danger: #dc2626;
    --danger-subtle: #fef2f2;
    --card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.04), 0 1px 2px -1px rgba(0, 0, 0, 0.03);
    --card-shadow-hover: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.03);
    --input-bg: #ffffff;
    --input-border: #d1d5db;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-page: #0d1117;
    --bg-surface: #161b22;
    --bg-subtle: #21262d;
    --border-color: #30363d;
    --border-subtle: #21262d;
    --text-main: #f0f6fc;
    --text-muted: #8b949e;
    --text-faint: #6e7681;
    --primary: #10b981;
    --primary-hover: #059669;
    --primary-subtle: rgba(16, 185, 129, 0.12);
    --primary-border: rgba(16, 185, 129, 0.3);
    --primary-text: #34d399;
    --danger: #ef4444;
    --danger-subtle: rgba(239, 68, 68, 0.12);
    --card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --card-shadow-hover: 0 4px 12px 0 rgba(0, 0, 0, 0.4);
    --input-bg: #0d1117;
    --input-border: #30363d;
}

/* Base Styles */
body {
    background-color: var(--bg-page);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 0.95rem;
    line-height: 1.6;
    letter-spacing: -0.01em;
    min-height: 100vh;
    margin: 0;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* Typography Overrides */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
    letter-spacing: -0.025em;
    font-weight: 600;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--primary-hover);
}

/* Navigation */
.systik-navbar {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.brand-title {
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.03em;
    color: var(--text-main);
}

.brand-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--primary);
    margin-left: 2px;
}

/* Cards & Surfaces */
.systik-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.systik-card-interactive:hover {
    border-color: var(--primary-border);
    box-shadow: var(--card-shadow-hover);
}

/* Buttons */
.btn-systik-primary {
    background-color: var(--primary);
    color: #ffffff !important;
    border: 1px solid transparent;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.6rem 1.25rem;
    border-radius: 0.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.15s ease;
}

.btn-systik-primary:hover {
    background-color: var(--primary-hover);
    color: #ffffff !important;
}

.btn-systik-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.6rem 1.25rem;
    border-radius: 0.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.15s ease;
}

.btn-systik-outline:hover {
    background-color: var(--bg-subtle);
    border-color: var(--text-faint);
    color: var(--text-main);
}

.btn-systik-google {
    background-color: var(--bg-surface);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    transition: all 0.15s ease;
}

.btn-systik-google:hover {
    background-color: var(--bg-subtle);
    border-color: var(--text-faint);
    color: var(--text-main);
}

/* Form Controls */
.form-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.form-control-systik {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-main);
    border-radius: 0.5rem;
    padding: 0.65rem 0.9rem;
    font-size: 0.925rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control-systik:focus {
    background-color: var(--input-bg);
    border-color: var(--primary);
    color: var(--text-main);
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-subtle);
}

/* Badges */
.badge-soft-emerald {
    background-color: var(--primary-subtle);
    color: var(--primary-text);
    border: 1px solid var(--primary-border);
    font-weight: 500;
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    border-radius: 0.375rem;
}

.badge-soft-muted {
    background-color: var(--bg-subtle);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    font-weight: 500;
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    border-radius: 0.375rem;
}

.badge-soft-danger {
    background-color: var(--danger-subtle);
    color: var(--danger);
    border: 1px solid rgba(220, 38, 38, 0.25);
    font-weight: 500;
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    border-radius: 0.375rem;
}

/* Theme Toggle Button */
.btn-theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 0.5rem;
    padding: 0.45rem 0.65rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-theme-toggle:hover {
    background-color: var(--bg-subtle);
    color: var(--text-main);
}

/* Pricing Grid */
.pricing-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-featured {
    border-color: var(--primary) !important;
    position: relative;
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary);
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.2rem 0.6rem;
    border-radius: 1rem;
}

/* Table */
.table-systik {
    color: var(--text-main);
    margin-bottom: 0;
}

.table-systik th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    background-color: transparent;
}

.table-systik td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
    background-color: transparent;
}

/* Alerts */
.alert-systik-info {
    background-color: var(--primary-subtle);
    border: 1px solid var(--primary-border);
    color: var(--primary-text);
    border-radius: 0.5rem;
}

.alert-systik-danger {
    background-color: var(--danger-subtle);
    border: 1px solid rgba(220, 38, 38, 0.2);
    color: var(--danger);
    border-radius: 0.5rem;
}

.alert-systik-success {
    background-color: var(--primary-subtle);
    border: 1px solid var(--primary-border);
    color: var(--primary-text);
    border-radius: 0.5rem;
}