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

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #0d5f59;
    --color-primary-light: #14b8a6;
    --color-accent: #0ea5e9;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-border: #e2e8f0;
    --color-error: #dc2626;
    --color-success: #16a34a;
    --color-warning: #f59e0b;
    --radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --max-width: 1200px;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

img { max-width: 100%; }

/* ===== Navbar ===== */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.navbar {
    width: 100%;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    white-space: nowrap;
}

.nav-brand:hover {
    color: var(--color-primary-dark);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    padding: 0.5rem 0;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.nav-auth {
    display: flex;
    align-items: center;
}

.logout-form {
    display: inline;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
    text-align: center;
    text-decoration: none;
    line-height: 1.5;
}

.btn:hover {
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
}

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

.btn-outline:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn-accent {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.btn-accent:hover {
    background: #0284c7;
    border-color: #0284c7;
    color: #fff;
}

.btn-danger {
    background: var(--color-error);
    color: #fff;
    border-color: var(--color-error);
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

.btn-danger:hover {
    background: #b91c1c;
    border-color: #b91c1c;
    color: #fff;
}

/* ===== Hamburger ===== */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all 0.3s;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--color-text);
    color: #cbd5e1;
    margin-top: auto;
    padding: 2rem 0 1rem;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #334155;
}

.footer-brand {
    flex: 1;
}

.footer-logo {
    font-size: 1.125rem;
    font-weight: 700;
    color: #fff;
}

.footer-tagline {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: #94a3b8;
}

.footer-links ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: #cbd5e1;
    font-size: 0.875rem;
}

.footer-links a:hover {
    color: #fff;
    text-decoration: underline;
}

.footer-bottom {
    padding-top: 1rem;
    text-align: center;
    font-size: 0.8rem;
    color: #64748b;
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.5rem;
    width: 100%;
}

/* ===== Hero Section (Landing) ===== */
.hero {
    text-align: center;
    padding: 3rem 1rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
    border-radius: var(--radius);
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 1.5rem;
    opacity: 0.9;
}

/* ===== Search Bar ===== */
.search-bar {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
}

.search-bar input[type="text"] {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(255,255,255,0.3);
    border-right: none;
    border-radius: var(--radius) 0 0 var(--radius);
    font-size: 1rem;
    outline: none;
}

.search-bar input[type="text"]:focus {
    border-color: var(--color-accent);
}

.search-bar button {
    padding: 0.75rem 1.5rem;
    background: var(--color-accent);
    color: #fff;
    border: 2px solid var(--color-accent);
    border-radius: 0 var(--radius) var(--radius) 0;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.search-bar button:hover {
    background: #0284c7;
    border-color: #0284c7;
}

/* ===== Cards & Job Lists ===== */
.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--color-text);
}

.job-list {
    list-style: none;
    display: grid;
    gap: 1rem;
}

.job-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    transition: box-shadow 0.2s;
}

.job-card:hover {
    box-shadow: var(--shadow-md);
}

.job-card h3, .job-card h4 {
    margin-bottom: 0.5rem;
}

.job-card h3 a, .job-card h4 a {
    color: var(--color-text);
    font-weight: 600;
}

.job-card h3 a:hover, .job-card h4 a:hover {
    color: var(--color-primary);
}

.job-meta {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.job-meta span + span::before {
    content: " — ";
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-light);
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.375rem;
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15,118,110,0.1);
}

.form-error {
    color: var(--color-error);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
}

.alert-error {
    background: #fef2f2;
    color: var(--color-error);
    border: 1px solid #fecaca;
}

.alert-warning {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

/* ===== Search Page ===== */
.search-filters {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: 1rem;
    align-items: end;
    margin-bottom: 2rem;
    background: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.search-filters .form-group {
    margin-bottom: 0;
}

.search-filters button {
    height: 42px;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
    font-size: 0.9rem;
}

.pagination a {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-primary);
}

.pagination a:hover {
    background: var(--color-primary);
    color: #fff;
    text-decoration: none;
}

/* ===== Tables ===== */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

thead {
    background: #f1f5f9;
}

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}

th {
    font-weight: 600;
    color: var(--color-text-light);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td a {
    font-weight: 500;
}

.status-active {
    color: var(--color-success);
    font-weight: 600;
}

.status-pending {
    color: var(--color-warning);
    font-weight: 600;
}

.status-inactive {
    color: var(--color-text-light);
    font-weight: 600;
}

.actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* ===== Detail Page ===== */
.detail-page {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
}

.detail-page h2 {
    font-size: 1.75rem;
    margin-bottom: 1.25rem;
}

.detail-page dl {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 0.5rem 1rem;
    margin-bottom: 1.5rem;
}

.detail-page dt {
    font-weight: 600;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.detail-page dd {
    font-size: 0.95rem;
}

.detail-page .description {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

/* ===== Login Page ===== */
.login-container {
    max-width: 420px;
    margin: 3rem auto;
    text-align: center;
    background: var(--color-surface);
    padding: 2.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.login-container h2 {
    margin-bottom: 0.75rem;
}

.login-container p {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.google-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: #fff;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.google-btn:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    color: var(--color-text);
}

/* ===== Error Pages ===== */
.error-page {
    text-align: center;
    padding: 4rem 1rem;
}

.error-page h1 {
    font-size: 4rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.error-page p {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

/* ===== About & Donate Pages ===== */
.content-page {
    max-width: 800px;
    margin: 0 auto;
}

.content-page h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--color-primary-dark);
}

.content-page section {
    margin-bottom: 2rem;
}

.content-page h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.content-page ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.content-page li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.donate-links {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.donate-links li {
    margin: 0;
}

.donate-links a {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius);
    font-weight: 600;
    transition: background 0.2s;
}

.donate-links a:hover {
    background: var(--color-primary-dark);
    text-decoration: none;
    color: #fff;
}

.note {
    font-style: italic;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* ===== Responsive: Tablet (768px - 1023px) ===== */
@media (max-width: 1023px) {
    .search-filters {
        grid-template-columns: 1fr 1fr;
    }

    .detail-page dl {
        grid-template-columns: 120px 1fr;
    }

    .hero h1 {
        font-size: 1.75rem;
    }
}

/* ===== Responsive: Mobile (<768px) ===== */
@media (max-width: 767px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: 1rem 1.5rem;
        gap: 1rem;
        box-shadow: var(--shadow-md);
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-links {
        flex-direction: column;
        gap: 0;
    }

    .nav-links li a {
        display: block;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-auth {
        padding-top: 0.5rem;
    }

    .search-filters {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 2rem 1rem;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .hero p {
        font-size: 0.95rem;
    }

    .search-bar {
        flex-direction: column;
    }

    .search-bar input[type="text"] {
        border-right: 2px solid rgba(255,255,255,0.3);
        border-radius: var(--radius);
        margin-bottom: 0.5rem;
    }

    .search-bar button {
        border-radius: var(--radius);
    }

    .detail-page {
        padding: 1.25rem;
    }

    .detail-page dl {
        grid-template-columns: 1fr;
    }

    .detail-page dt {
        margin-top: 0.5rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
    }

    .footer-links ul {
        flex-direction: column;
        gap: 0.5rem;
    }

    table {
        font-size: 0.8rem;
    }

    th, td {
        padding: 0.5rem;
    }

    .login-container {
        margin: 1.5rem auto;
        padding: 1.5rem;
    }
}