/* ============================================================
   RENTIT THEME MODULE
   Global CSS Variables & Dark/Light Theme System
   
   Design Principles:
   - No Pure Black (#000000) - Use rich dark blue-grey
   - No Pure White (#FFFFFF) - Use off-white with subtle tint
   - RentIt Blue (#013A63) as brand foundation
   - Orange (#FB7012) as split-complementary accent
   ============================================================ */

/* ============================
   LIGHT THEME (Default)
   ============================ */
:root {
    /* === BRAND COLORS (Immutable) === */
    --brand-primary: #013A63;           /* RentIt Blue - Foundation */
    --brand-primary-light: #014F86;     /* Lighter blue for gradients */
    --brand-primary-dark: #012A4A;      /* Darker blue for depth */
    
    /* === ACCENT COLORS (Split-Complementary to Blue) === */
    --accent: #E67E22;                  /* Softer burnt orange for Light Mode */
    --accent-hover: #D35400;            /* Darker on hover */
    --accent-light: #FFAA60;            /* Light orange for backgrounds */
    --accent-soft: #FFA970;             /* Soft orange for backgrounds */
    --accent-muted: rgba(230, 126, 34, 0.15);
    
    /* === SEMANTIC BACKGROUND COLORS === */
    /* No pure white - use off-white with subtle blue tint */
    --bg-primary: #F8FAFC;              /* Off-white page background */
    --bg-secondary: #F1F5F9;            /* Slightly darker sections */
    --bg-tertiary: #E2E8F0;             /* Cards, inputs background */
    --bg-card: #FFFFFF;                 /* Cards pop slightly */
    --bg-elevated: #FFFFFF;             /* Elevated surfaces */
    
    /* Navigation & Header */
    --nav-bg: #013A63;                  /* RentIt Blue nav */
    --nav-bg-scroll: rgba(1, 58, 99, 0.98);
    
    /* Hero Section - Dark gradient (always dark for impact) */
    --hero-top: #0A1628;
    --hero-bottom: #013A63;
    
    /* Panels & Dropdowns */
    --panel-bg: #1e293b;
    --panel-border: rgba(255, 255, 255, 0.1);
    
    /* Footer */
    --footer-bg: #0F172A;
    --footer-text: #CBD5E1;
    
    /* === TEXT COLORS - No pure black === */
    --text-primary: #0F172A;            /* Rich dark blue-grey */
    --text-secondary: #334155;          /* Muted text */
    --text-tertiary: #64748B;           /* Subtle text */
    --text-muted: #94A3B8;              /* Very muted */
    --text-inverse: #F8FAFC;            /* Light text on dark bg */
    --text-on-nav: #FFFFFF;             /* Text on nav/header */
    
    /* === BORDERS === */
    --border-light: #E2E8F0;
    --border-medium: #CBD5E1;
    --border-dark: rgba(255, 255, 255, 0.1);
    --border-color: #E2E8F0;            /* Default border color */
    
    /* === STATUS COLORS === */
    --success: #10B981;
    --success-bg: #D1FAE5;
    --warning: #F59E0B;
    --warning-bg: #FEF3C7;
    --danger: #EF4444;
    --danger-bg: #FEE2E2;
    --info: #3B82F6;
    --info-bg: #DBEAFE;
    
    /* === STRUCTURAL === */
    /* Hybrid Container System */
    --container-width: 1440px;          /* Landing pages - constrained for readability */
    --container-width-fluid: calc(100% - 40px);  /* Dashboard pages - fluid for functionality */
    --container-width-auth: 500px;      /* Auth pages - focused and narrow */
    --gutter: 20px;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* === TRANSITIONS === */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    --transition-speed: 0.3s;
    --transition-theme: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    
    /* === SHADOWS === */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 20px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.1);
    --shadow-xl: 0 20px 60px rgba(15, 23, 42, 0.12);
    --shadow-card: 0 2px 8px rgba(15, 23, 42, 0.08);
    --shadow-elevated: 0 8px 30px rgba(15, 23, 42, 0.12);
    
    /* === LEGACY ALIASES (Compatibility) === */
    --nav-primary: var(--nav-bg);
    --text: var(--text-inverse);
    --card-bg: var(--bg-card);
    --section-light: var(--bg-secondary);
    --panel: var(--panel-bg);
    
    /* === SECTION CONTENT COLORS (Theme-aware) === */
    --section-title: #0F172A;           /* Section titles - rich dark */
    --section-text: #64748B;            /* Section body text */
    --card-title: #0F172A;              /* Card titles */
    --card-text: #64748B;               /* Card body text */
    --icon-fill: #0F172A;               /* Icon fills in sections */
    --tab-text: #64748B;                /* Tab inactive text */
    --tab-border: #E2E8F0;              /* Tab borders */
    
    /* === HEADING COLORS (Theme-aware - replaces brand-primary for content) === */
    --heading-primary: #013A63;         /* Primary headings - brand blue in light */
    --heading-secondary: #014F86;       /* Secondary headings */
    
    /* === PAGE HEADER (Banner gradient for inner pages) === */
    --page-header-start: #013A63;       /* Gradient start */
    --page-header-end: #014F86;         /* Gradient end */
    
    /* === DROPDOWN COLORS === */
    --dropdown-bg: #FFFFFF;
    --dropdown-border: rgba(0, 0, 0, 0.1);
    --dropdown-divider: rgba(0, 0, 0, 0.06);
    --dropdown-hover: rgba(0, 0, 0, 0.04);
    --dropdown-text: #0F172A;
    --dropdown-text-muted: #64748B;
    --dropdown-unread-bg: rgba(251, 112, 18, 0.08);
}

/* ============================
   DARK THEME
   ============================ */
[data-theme="dark"] {
    /* Backgrounds - Rich dark with blue undertone (No pure black) */
    --bg-primary: #0F172A;              /* Rich dark navy */
    --bg-secondary: #1E293B;            /* Slightly lighter */
    --bg-tertiary: #334155;             /* For inputs, etc. */
    --bg-card: #1E293B;                 /* Cards in dark mode */
    --bg-elevated: #243447;             /* Elevated surfaces */
    
    /* Section backgrounds - for light sections in landing page */
    --section-light: #1E293B;           /* "Light" sections become dark */
    --card-bg: #1E293B;                 /* Card backgrounds */
    
    /* Text Colors - Soft off-whites (No pure white) */
    --text-primary: #F1F5F9;            /* Primary text - off-white */
    --text-secondary: #CBD5E1;          /* Secondary text */
    --text-tertiary: #94A3B8;           /* Tertiary text */
    --text-muted: #64748B;              /* Muted text */
    
    /* Section content colors - replaces hardcoded #0A1628 */
    --section-title: #F1F5F9;           /* Section titles in dark mode */
    --section-text: #CBD5E1;            /* Section body text */
    --card-title: #F1F5F9;              /* Card titles */
    --card-text: #94A3B8;               /* Card body text */
    
    /* Heading colors - light in dark mode */
    --heading-primary: #F1F5F9;         /* Primary headings - light in dark mode */
    --heading-secondary: #CBD5E1;       /* Secondary headings */

    /* Brand overrides for dark readability */
    --brand-primary: #5B9BD5;           /* Lighter blue for dark mode */
    --brand-primary-light: #7CB3E0;     /* Visible on dark backgrounds */
    --brand-primary-dark: #4A8BC2;      /* Depth variant dark mode */
    
    /* Borders */
    --border-light: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.12);
    --border-color: rgba(255, 255, 255, 0.08);
    
    /* Tab styling */
    --tab-text: #94A3B8;
    --tab-border: rgba(255, 255, 255, 0.1);
    --icon-fill: #F1F5F9;
    
    /* Panel adjustments */
    --panel-bg: #1E293B;
    --panel-border: rgba(255, 255, 255, 0.08);
    
    /* Shadows - More subtle in dark mode */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.35);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-elevated: 0 8px 30px rgba(0, 0, 0, 0.4);
    
    /* Accent colors - Vibrant in dark mode for better visibility */
    --accent: #FB7012;                  /* Vibrant Orange for Dark Mode */
    --accent-hover: #FF8534;            /* Lighter on hover */
    --accent-muted: rgba(251, 112, 18, 0.2);
    
    /* Status colors with dark mode adjustments */
    --success-bg: rgba(16, 185, 129, 0.15);
    --warning-bg: rgba(245, 158, 11, 0.15);
    --danger-bg: rgba(239, 68, 68, 0.15);
    --info-bg: rgba(59, 130, 246, 0.15);
    
    /* Page header - Slightly lighter gradient in dark mode */
    --page-header-start: #1E293B;
    --page-header-end: #334155;
    
    /* Dropdown colors - Dark mode */
    --dropdown-bg: #1E293B;
    --dropdown-border: rgba(255, 255, 255, 0.1);
    --dropdown-divider: rgba(255, 255, 255, 0.06);
    --dropdown-hover: rgba(255, 255, 255, 0.04);
    --dropdown-text: #F1F5F9;
    --dropdown-text-muted: #94A3B8;
    --dropdown-unread-bg: rgba(251, 112, 18, 0.12);
}

/* ============================
   THEME TOGGLE BUTTON STYLES
   ============================ */
.theme-toggle {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 999px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #ffffff;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Auth Theme Toggle - Positioned in top-right corner */
.auth-theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.auth-theme-toggle:hover {
    background: var(--bg-elevated);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.auth-theme-toggle svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

/* Light Mode: Show Moon, Hide Sun */
.theme-toggle .sun-icon,
.auth-theme-toggle .sun-icon {
    position: absolute;
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

.theme-toggle .moon-icon,
.auth-theme-toggle .moon-icon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* Dark Mode: Show Sun, Hide Moon */
[data-theme="dark"] .theme-toggle .sun-icon,
[data-theme="dark"] .auth-theme-toggle .sun-icon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-toggle .moon-icon,
[data-theme="dark"] .auth-theme-toggle .moon-icon {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

/* ============================
   Page Skeleton Overlay
   ============================ */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.page-skeleton-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.page-skeleton-overlay.is-hidden {
    opacity: 0;
    visibility: hidden;
}

.page-skeleton-shell {
    width: min(1180px, 100%);
    display: grid;
    grid-template-columns: minmax(220px, 260px) 1fr;
    gap: 20px;
}

.page-skeleton-sidebar {
    background: var(--nav-bg);
    border-radius: 18px;
    box-shadow: var(--shadow-lg);
    padding: 22px 18px;
    display: grid;
    gap: 20px;
}

.page-skeleton-main {
    display: grid;
    gap: 16px;
}

.page-skeleton-topbar,
.page-skeleton-card {
    background: var(--bg-card);
    border-radius: 18px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    padding: 18px 20px;
    display: grid;
    gap: 14px;
}

.page-skeleton-topbar {
    grid-template-columns: 1fr auto;
    align-items: center;
}

.page-skeleton-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    padding: 24px 6px;
}

.page-skeleton-loader > span:not(.page-skeleton-spinner) {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.page-skeleton-spinner {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 3px solid rgba(15, 23, 42, 0.15);
    border-top-color: var(--accent);
    animation: spin 0.75s linear infinite;
}

[data-theme="dark"] .page-skeleton-spinner {
    border-color: rgba(248, 250, 252, 0.15);
    border-top-color: var(--accent);
}

.page-skeleton-loader::after {
    content: '';
    width: 180px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(15, 23, 42, 0.08), rgba(15, 23, 42, 0.30), rgba(15, 23, 42, 0.08));
    background-size: 200% 100%;
    animation: shimmer 1.1s linear infinite;
}

[data-theme="dark"] .page-skeleton-loader::after {
    background: linear-gradient(90deg, rgba(248, 250, 252, 0.08), rgba(248, 250, 252, 0.30), rgba(248, 250, 252, 0.08));
    background-size: 200% 100%;
    animation: shimmer 1.1s linear infinite;
}

.skeleton-shape,
.page-skeleton-line,
.page-skeleton-pill,
.page-skeleton-circle {
    background: linear-gradient(90deg, rgba(15, 23, 42, 0.08), rgba(15, 23, 42, 0.18), rgba(15, 23, 42, 0.08));
    background-size: 200% 100%;
    animation: shimmer 1.4s linear infinite;
    border-radius: 999px;
}

[data-theme="dark"] .skeleton-shape,
[data-theme="dark"] .page-skeleton-line,
[data-theme="dark"] .page-skeleton-pill,
[data-theme="dark"] .page-skeleton-circle {
    background: linear-gradient(90deg, rgba(248, 250, 252, 0.08), rgba(248, 250, 252, 0.18), rgba(248, 250, 252, 0.08));
}

.page-skeleton-logo {
    height: 26px;
    width: 120px;
}

.page-skeleton-nav {
    display: grid;
    gap: 10px;
}

.page-skeleton-user {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-skeleton-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.page-skeleton-table {
    display: grid;
    gap: 10px;
}

.page-skeleton-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 0.8fr;
    gap: 10px;
}

.page-skeleton-block {
    height: 12px;
    width: 100%;
    border-radius: 8px;
}

.page-skeleton-pill {
    height: 32px;
    width: 140px;
    border-radius: 12px;
}

.w-80 { width: 80%; }
.w-70 { width: 70%; }
.w-60 { width: 60%; }
.w-50 { width: 50%; }
.w-40 { width: 40%; }
.w-35 { width: 35%; }
.w-30 { width: 30%; }
.w-25 { width: 25%; }
.w-20 { width: 20%; }

@media (max-width: 900px) {
    .page-skeleton-shell {
        grid-template-columns: 1fr;
    }

    .page-skeleton-sidebar {
        display: none;
    }
}

/* Marketing page skeleton layout */
.page-skeleton-overlay[data-skeleton="marketing"] {
    align-items: flex-start;
}

.page-skeleton-marketing {
    width: min(1180px, 100%);
    display: grid;
    gap: 24px;
    margin-top: 24px;
}

.marketing-topbar {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    padding: 14px 18px;
}

.marketing-logo {
    width: 90px;
    height: 18px;
}

.marketing-nav {
    display: flex;
    gap: 10px;
}

.marketing-pill {
    height: 12px;
    width: 70px;
}

.marketing-cta {
    height: 28px;
    width: 110px;
    border-radius: 12px;
}

.marketing-hero {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 24px;
    align-items: center;
}

.marketing-hero-text {
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    padding: 24px;
    display: grid;
    gap: 14px;
}

.marketing-line {
    height: 14px;
}

.marketing-actions {
    display: flex;
    gap: 12px;
}

.marketing-button {
    height: 36px;
    width: 120px;
    border-radius: 14px;
}

.marketing-hero-media {
    height: 240px;
    border-radius: 20px;
}

.marketing-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.marketing-card {
    height: 140px;
    border-radius: 18px;
}

@media (max-width: 960px) {
    .marketing-hero {
        grid-template-columns: 1fr;
    }

    .marketing-cards {
        grid-template-columns: 1fr;
    }
}