/* Main CSS file for Graduation Announcement System */

/* Global Styles */
:root {
    --primary-color: #1a73e8;
    --primary-dark: #0d47a1;
    --primary-light: #e8f0fe;
    --success-color: #34a853;
    --warning-color: #fbbc05;
    --error-color: #ea4335;
    --neutral-dark: #202124;
    --neutral-medium: #5f6368;
    --neutral-light: #e8eaed;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --spacing-unit: 8px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Roboto', 'Segoe UI', Arial, sans-serif;
    line-height: 1.5;
    color: var(--neutral-dark);
    background-color: #f8f9fa;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: calc(var(--spacing-unit) * 2);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: calc(var(--spacing-unit) * 2);
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: calc(var(--spacing-unit) * 2);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 2);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: none;
    border-radius: var(--border-radius);
    transition: background-color 0.3s, transform 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

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

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

.btn-success {
    background-color: var(--success-color);
    color: var(--white);
}

.btn-success:hover {
    background-color: #2d9248;
}

.btn-danger {
    background-color: var(--error-color);
    color: var(--white);
}

.btn-danger:hover {
    background-color: #d32f2f;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.form-label {
    display: block;
    margin-bottom: calc(var(--spacing-unit));
    font-weight: 500;
}

.form-control {
    display: block;
    width: 100%;
    padding: calc(var(--spacing-unit) * 1.5);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--neutral-dark);
    background-color: var(--white);
    border: 1px solid var(--neutral-light);
    border-radius: var(--border-radius);
    transition: border-color 0.3s;
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.25);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235f6368' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right calc(var(--spacing-unit) * 1.5) center;
    background-size: 16px;
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.card-header {
    padding: calc(var(--spacing-unit) * 2);
    border-bottom: 1px solid var(--neutral-light);
}

.card-body {
    padding: calc(var(--spacing-unit) * 3);
}

.card-footer {
    padding: calc(var(--spacing-unit) * 2);
    border-top: 1px solid var(--neutral-light);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.table th,
.table td {
    padding: calc(var(--spacing-unit) * 2);
    text-align: left;
    border-bottom: 1px solid var(--neutral-light);
}

.table th {
    font-weight: 500;
    background-color: var(--primary-light);
}

.table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

/* Alerts */
.alert {
    padding: calc(var(--spacing-unit) * 2);
    margin-bottom: calc(var(--spacing-unit) * 3);
    border-radius: var(--border-radius);
}

.alert-success {
    background-color: rgba(52, 168, 83, 0.1);
    color: var(--success-color);
}

.alert-danger {
    background-color: rgba(234, 67, 53, 0.1);
    color: var(--error-color);
}

.alert-warning {
    background-color: rgba(251, 188, 5, 0.1);
    color: var(--warning-color);
}

.alert-info {
    background-color: rgba(26, 115, 232, 0.1);
    color: var(--primary-color);
}

/* Login & Announcement Pages */
.auth-container {
    max-width: 500px;
    margin: 80px auto;
}

.school-logo {
    display: block;
    margin: 0 auto calc(var(--spacing-unit) * 4);
    width: 120px;
    height: 120px;
}

.auth-title {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.announcement-container {
    max-width: 700px;
    margin: 40px auto;
    text-align: center;
}

.announcement-card {
    padding: calc(var(--spacing-unit) * 6);
}

.announcement-success {
    color: var(--success-color);
    font-size: 2.5rem;
    font-weight: 700;
    margin: calc(var(--spacing-unit) * 4) 0;
    animation: fadeInUp 0.5s ease-out;
}

.announcement-name {
    font-size: 1.8rem;
    margin: calc(var(--spacing-unit) * 2) 0;
}

.announcement-result {
    font-size: 3.5rem;
    font-weight: 900;
    margin: calc(var(--spacing-unit) * 4) 0;
    color: var(--primary-color);
    animation: pulse 1s infinite alternate;
    text-transform: uppercase;
}

.announcement-error {
    color: var(--error-color);
    font-size: 1.8rem;
    font-weight: 700;
    margin: calc(var(--spacing-unit) * 4) 0;
}

/* Admin Dashboard */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.action-buttons {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    background-color: var(--white);
    margin: 10% auto;
    max-width: 600px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.modal-header {
    padding: calc(var(--spacing-unit) * 2);
    border-bottom: 1px solid var(--neutral-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: calc(var(--spacing-unit) * 3);
}

.modal-footer {
    padding: calc(var(--spacing-unit) * 2);
    border-top: 1px solid var(--neutral-light);
    display: flex;
    justify-content: flex-end;
    gap: calc(var(--spacing-unit) * 2);
}

.close {
    color: var(--neutral-medium);
    font-size: 1.5rem;
    cursor: pointer;
}

.close:hover {
    color: var(--error-color);
}

/* Utilities */
.text-center {
    text-align: center;
}

.mb-1 {
    margin-bottom: calc(var(--spacing-unit));
}

.mb-2 {
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.mb-3 {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.mb-4 {
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.mt-1 {
    margin-top: calc(var(--spacing-unit));
}

.mt-2 {
    margin-top: calc(var(--spacing-unit) * 2);
}

.mt-3 {
    margin-top: calc(var(--spacing-unit) * 3);
}

.mt-4 {
    margin-top: calc(var(--spacing-unit) * 4);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.05);
    }
}

/* Responsive Styles */
@media (max-width: 768px) {
    .container {
        padding: calc(var(--spacing-unit));
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
        gap: calc(var(--spacing-unit) * 2);
    }
    
    .action-buttons {
        flex-wrap: wrap;
        width: 100%;
    }
    
    .table {
        display: block;
        overflow-x: auto;
    }
    
    .announcement-result {
        font-size: 2.5rem;
    }
    
    .announcement-card {
        padding: calc(var(--spacing-unit) * 3);
    }
}