/* static/css/main.css */
/* ====================================================
   BRAND COLOR VARIABLES
   ==================================================== */
:root {
    /* Primary Colors */
    --primary-blue: #003B80;
    --bright-blue: #0057B8;
    --primary-green: #00B800;
    --dark-green: #008000;

    /* Neutral Colors */
    --white: #FFFFFF;
    --light-blue-bg: #F3F7FC;
    --light-green-bg: #F1FAF1;
    --dark-charcoal: #1F2937;
    --light-gray: #E5E7EB;

    /* Semantic Colors */
    --border-color: var(--light-gray);
    --text-color: var(--dark-charcoal);
    --body-bg: var(--white);

    /* Font */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;

    /* Spacing */
    --container-max-width: 1200px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* ====================================================
   GLOBAL RESET & BASE
   ==================================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--body-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ====================================================
   TYPOGRAPHY
   ==================================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--dark-charcoal);
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 2.5rem;
}
h2 {
    font-size: 2rem;
}
h3 {
    font-size: 1.5rem;
}
h4 {
    font-size: 1.25rem;
}
h5 {
    font-size: 1rem;
}
h6 {
    font-size: 0.875rem;
}

p {
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--bright-blue);
    text-decoration: underline;
}

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

/* ====================================================
   UTILITY: CONTAINER
   ==================================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1.25rem;
    width: 100%;
}

/* ====================================================
   UTILITY: TEXT
   ==================================================== */
.text-center {
    text-align: center;
}
.text-left {
    text-align: left;
}
.text-right {
    text-align: right;
}

.text-primary {
    color: var(--primary-blue);
}
.text-green {
    color: var(--primary-green);
}
.text-muted {
    color: var(--dark-charcoal);
    opacity: 0.7;
}

/* ====================================================
   UTILITY: SPACING
   ==================================================== */
/* Margins */
.m-0 {
    margin: 0;
}
.m-1 {
    margin: var(--spacing-sm);
}
.m-2 {
    margin: var(--spacing-md);
}
.m-3 {
    margin: var(--spacing-lg);
}
.m-4 {
    margin: var(--spacing-xl);
}

.mt-1 {
    margin-top: var(--spacing-sm);
}
.mt-2 {
    margin-top: var(--spacing-md);
}
.mt-3 {
    margin-top: var(--spacing-lg);
}
.mt-4 {
    margin-top: var(--spacing-xl);
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}
.mb-2 {
    margin-bottom: var(--spacing-md);
}
.mb-3 {
    margin-bottom: var(--spacing-lg);
}
.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.my-1 {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}
.my-2 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}
.my-3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

/* Padding */
.p-0 {
    padding: 0;
}
.p-1 {
    padding: var(--spacing-sm);
}
.p-2 {
    padding: var(--spacing-md);
}
.p-3 {
    padding: var(--spacing-lg);
}
.p-4 {
    padding: var(--spacing-xl);
}

.py-1 {
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}
.py-2 {
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}
.py-3 {
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}
.py-4 {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.px-1 {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}
.px-2 {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}
.px-3 {
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}
.px-4 {
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
}

/* ====================================================
   UTILITY: DISPLAY & FLEX
   ==================================================== */
.d-flex {
    display: flex;
}
.d-grid {
    display: grid;
}
.d-block {
    display: block;
}
.d-none {
    display: none;
}

.flex-column {
    flex-direction: column;
}
.flex-row {
    flex-direction: row;
}
.flex-wrap {
    flex-wrap: wrap;
}
.align-center {
    align-items: center;
}
.align-start {
    align-items: flex-start;
}
.align-end {
    align-items: flex-end;
}
.justify-center {
    justify-content: center;
}
.justify-between {
    justify-content: space-between;
}
.justify-start {
    justify-content: flex-start;
}
.justify-end {
    justify-content: flex-end;
}
.gap-1 {
    gap: var(--spacing-sm);
}
.gap-2 {
    gap: var(--spacing-md);
}
.gap-3 {
    gap: var(--spacing-lg);
}

/* ====================================================
   UTILITY: VISUALLY HIDDEN (Accessibility)
   ==================================================== */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* ====================================================
   UTILITY: MESSAGES (Django messages)
   ==================================================== */
.messages-container {
    max-width: var(--container-max-width);
    margin: 1rem auto 0;
    padding: 0 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.message {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid transparent;
    animation: slideDown 0.3s ease;
}

.message-success {
    background: var(--light-green-bg);
    border-color: var(--primary-green);
    color: var(--dark-green);
}

.message-error {
    background: #FEF2F2;
    border-color: #FCA5A5;
    color: #991B1B;
}

.message-warning {
    background: #FFFBEB;
    border-color: #FCD34D;
    color: #92400E;
}

.message-info {
    background: var(--light-blue-bg);
    border-color: var(--bright-blue);
    color: var(--primary-blue);
}

.message-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
    padding: 0 0.25rem;
    transition: opacity var(--transition-fast);
}

.message-close:hover {
    opacity: 1;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ====================================================
   NO ITEMS PLACEHOLDER
   ==================================================== */
.no-items {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--dark-charcoal);
    opacity: 0.6;
    font-size: 1.1rem;
    width: 100%;
}

/* ====================================================
   RESPONSIVE BREAKPOINTS
   ==================================================== */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.2rem;
    }
    h2 {
        font-size: 1.8rem;
    }
    h3 {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }
    h2 {
        font-size: 1.5rem;
    }
    h3 {
        font-size: 1.2rem;
    }
    body {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }
    h2 {
        font-size: 1.3rem;
    }
    h3 {
        font-size: 1.1rem;
    }
    body {
        font-size: 14px;
    }
}