/*
 * OctaImpact Site-wide Styles
 * General styles for public-facing pages and shared components
 */

/* Base reset and defaults */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background-color: #ffffff;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: #0f766e;
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #0d9488;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background-color: #0f766e;
    color: white;
}

.btn-primary:hover {
    background-color: #0d9488;
    color: white;
}

.btn-secondary {
    background-color: #f59e0b;
    color: white;
}

.btn-secondary:hover {
    background-color: #d97706;
    color: white;
}

.btn-outline {
    background-color: transparent;
    color: #0f766e;
    border: 2px solid #0f766e;
}

.btn-outline:hover {
    background-color: #0f766e;
    color: white;
}

.btn-disabled,
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #1f2937;
    background-color: #ffffff;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    outline: none;
    border-color: #0f766e;
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}

.form-control::placeholder {
    color: #9ca3af;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    color: #dc2626;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.is-invalid {
    border-color: #dc2626;
}

.is-invalid:focus {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Cards */
.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    background-color: #f9fafb;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid #e5e7eb;
    background-color: #f9fafb;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.alert-success {
    background-color: #d1fae5;
    border-color: #065f46;
    color: #065f46;
}

.alert-error {
    background-color: #fee2e2;
    border-color: #991b1b;
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    border-color: #92400e;
    color: #92400e;
}

.alert-info {
    background-color: #dbeafe;
    border-color: #1e40af;
    color: #1e40af;
}

/* Loading states */
.loading-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    border: 4px solid rgba(15, 118, 110, 0.1);
    border-radius: 50%;
    border-top: 4px solid #0f766e;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

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

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 3rem; }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.grid { display: grid; }

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Responsive */
@media (min-width: 640px) {
    h1 { font-size: 3rem; }
    h2 { font-size: 2.25rem; }
    h3 { font-size: 1.875rem; }
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

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

/* Focus states */
*:focus-visible {
    outline: 2px solid #0f766e;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .no-print {
        display: none !important;
    }
}