/* assets/css/main.css */
:root {
    /* Colors - Modern Flat Slate Palette */
    --primary-color: #332a71;
    --secondary-color: #029341;
    --tertiary-color: #0f94d2;
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    --success-color: #10b981;

    --text-main: #1e293b;
    --text-light: #64748b;
    --text-lighter: #94a3b8;
    --text-white: #ffffff;

    --bg-body: #f1f5f9;
    --bg-white: #ffffff;
    --bg-sidebar: #0f172a;
    --bg-sidebar-hover: #1e293b;

    /* Utility Colors */
    --border-color: #e2e8f0;
    --border-dark: #cbd5e1;
    --bg-subtle: #f8fafc;
    --bg-hover: #eff6ff;

    /* Transparency & Overlays */
    --white-alpha-10: rgba(255, 255, 255, 0.1);
    --white-alpha-20: rgba(255, 255, 255, 0.2);
    --white-alpha-80: rgba(255, 255, 255, 0.8);

    --black-alpha-05: rgba(0, 0, 0, 0.05);
    --black-alpha-10: rgba(0, 0, 0, 0.1);
    --black-alpha-15: rgba(0, 0, 0, 0.15);
    --black-alpha-20: rgba(0, 0, 0, 0.2);
    --black-alpha-50: rgba(0, 0, 0, 0.5);
    --black-alpha-60: rgba(0, 0, 0, 0.6);

    --shadow-color: var(--black-alpha-10);

    /* Typography */
    --font-main: 'Montserrat', system-ui, -apple-system, sans-serif;
    --font-size-base: 0.875rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;

    /* Effects */
    --shadow-sm: 0 1px 2px 0 var(--black-alpha-05);
    --shadow-md: 0 4px 6px -1px var(--black-alpha-10), 0 2px 4px -2px var(--black-alpha-10);
    --shadow-lg: 0 10px 15px -3px var(--black-alpha-10), 0 4px 6px -4px var(--black-alpha-10);

    --radius-xs: 2px;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* Google Material Symbols Base Class - Anti-FOUT (Flash of Unstyled Text) */
.material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-weight: normal;
    font-style: normal;
    font-size: 24px;
    display: inline-block;
    line-height: 1;
    text-transform: none;
    letter-spacing: normal;
    word-wrap: normal;
    white-space: nowrap;
    direction: ltr;
    vertical-align: middle;
    /* Anti-FOUT: Reserve fixed space and hide overflow text */
    width: 24px;
    height: 24px;
    overflow: hidden;
    /* Hide text until font loads */
    color: transparent;
    transition: color 0.1s ease;
}

/* Show icons once font is loaded (class added by JS) */
.fonts-loaded .material-symbols-outlined {
    color: inherit;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.5;
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

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

/* Layout Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0rem;
    width: 100%;
}

/* Utilities */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    gap: 0.35rem;
}

.btn-sm {
    height: auto;
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-white);
    border-color: transparent;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    box-shadow: 0 4px 6px -1px rgba(51, 42, 113, 0.3);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    height: 44px;
    padding: 0 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 0.875rem;
    color: var(--text-main);
    background-color: var(--bg-white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(51, 42, 113, 0.1);
}

.d-flex {
    display: flex;
}

.align-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.w-full {
    width: 100%;
}