/**
 * PROPERTION MARKETPLACE DESIGN SYSTEM STYLESHEET
 * Authentic Brand Theme: Propertion Blue (#004AC6), Clean Surface (#FAF8FF), and Modern Inter Typography
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    /* Brand Colors */
    --primary: #004AC6;
    --primary-hover: #003EA8;
    --primary-light: #EBF2FF;
    --primary-dim: rgba(0, 74, 198, 0.08);
    --primary-container: #2563EB;

    /* Surfaces & Backgrounds */
    --bg-primary: #FAF8FF;
    --bg-secondary: #F0F0FB;
    --bg-card: #FFFFFF;
    --bg-card-hover: #FFFFFF;
    --bg-input: #FFFFFF;
    --bg-surface-container: #EDEDF9;
    --bg-surface-high: #E7E7F3;

    /* Typography Colors */
    --text-primary: #191B23;
    --text-secondary: #545F73;
    --text-muted: #8E94A4;

    /* Borders & Outlines */
    --border-color: #E1E2ED;
    --border-hover: #B4C5FF;
    --border-focus: #004AC6;

    /* Semantic Status */
    --status-success: #10B981;
    --status-success-dim: #ECFDF5;
    --status-success-border: #A7F3D0;
    --status-amber: #F59E0B;
    --status-amber-dim: #FEF3C7;
    --status-error: #EF4444;
    --status-error-dim: #FEE2E2;

    /* Fonts */
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 25px -5px rgba(0, 74, 198, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 30px -10px rgba(0, 74, 198, 0.12);

    /* Transitions */
    --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    color-scheme: light;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.tabular-nums {
    font-variant-numeric: tabular-nums;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
}

@media (min-width: 640px) {
    .container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

/* Cards & Surfaces */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.glass-nav {
    background-color: rgba(250, 248, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn-primary, .btn-gold {
    background-color: var(--primary);
    color: #FFFFFF !important;
    border-color: var(--primary);
    box-shadow: 0 4px 14px 0 rgba(0, 74, 198, 0.25);
}

.btn-primary:hover, .btn-gold:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 6px 20px 0 rgba(0, 74, 198, 0.35);
    transform: translateY(-1px);
}

.btn-primary:active, .btn-gold:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: #FFFFFF;
    color: var(--text-primary);
    border-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background-color: var(--primary-light);
    color: var(--primary);
}

.btn-ghost {
    background-color: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    color: var(--primary);
    background-color: var(--primary-dim);
}

.btn-sm {
    padding: 0.45rem 0.85rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 0.85rem 1.75rem;
    font-size: 1rem;
    border-radius: var(--radius-md);
}

/* Form Controls */
.input, .select, .textarea {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: var(--transition);
    outline: none;
}

.input:focus, .select:focus, .textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 74, 198, 0.12);
    background-color: #FFFFFF;
}

.input::placeholder, .textarea::placeholder {
    color: var(--text-muted);
}

/* Badges & Pills */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge-primary, .badge-gold {
    background-color: var(--primary-dim);
    color: var(--primary);
    border: 1px solid rgba(0, 74, 198, 0.15);
}

.badge-success {
    background-color: var(--status-success-dim);
    color: var(--status-success);
    border: 1px solid var(--status-success-border);
}

.badge-amber {
    background-color: var(--status-amber-dim);
    color: var(--status-amber);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Skeletons */
.skeleton {
    background: linear-gradient(
        90deg,
        #E7E7F3 25%,
        #EDEDF9 50%,
        #E7E7F3 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite linear;
    border-radius: var(--radius-md);
}

@keyframes skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 360px;
    pointer-events: none;
}

.toast {
    background-color: #FFFFFF;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    font-weight: 500;
    pointer-events: auto;
    animation: toast-in 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast.toast-success { border-color: var(--status-success); }
.toast.toast-error { border-color: var(--status-error); }

@keyframes toast-in {
    from { opacity: 0; transform: translateY(12px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Floating Back-to-Top Button */
#back-to-top {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    z-index: 90;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background-color: var(--primary);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    border: none;
    box-shadow: 0 4px 15px rgba(0, 74, 198, 0.25);
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#back-to-top:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: #94A3B8;
}