@import url("./colors.css");

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    line-height: 1.6;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

a:hover, a:focus {
    color: var(--link-hover);
    text-decoration: underline;
}

/* Focus styles for accessibility */
:focus {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

/* Button Base Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 2.5rem;
    gap: var(--spacing-xs);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--primary-600);
    color: var(--text-inverse);
    border-color: var(--primary-600);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-700);
    border-color: var(--primary-700);
}

.btn-secondary {
    background-color: var(--surface);
    color: var(--text-primary);
    border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--surface-secondary);
    border-color: var(--border-secondary);
}

.btn-success {
    background-color: var(--success-600);
    color: var(--text-inverse);
    border-color: var(--success-600);
}

.btn-success:hover:not(:disabled) {
    background-color: var(--success-700);
    border-color: var(--success-700);
}

/* Form Controls */
.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background-color: var(--surface);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    min-height: 2.5rem;
}

.form-control:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgb(14 165 233 / 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

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

/* Cards */
.card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-fast);
}

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

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
    background-color: var(--surface-secondary);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
    background-color: var(--surface-secondary);
}

/* Grid System */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

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

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Text Contrast Utilities */
.text-on-light {
    color: var(--neutral-900) !important;
}

.text-on-dark {
    color: var(--neutral-50) !important;
}

.text-on-primary {
    color: var(--text-inverse) !important;
}

.text-on-secondary {
    color: var(--text-inverse) !important;
}

.text-auto-contrast {
    color: var(--text-primary);
}

/* Responsive text contrast for different backgrounds */
.bg-gradient .text-auto-contrast,
.hero .text-auto-contrast,
.text-gradient-safe {
    color: var(--text-inverse);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Enhanced contrast for better accessibility */
.text-high-contrast {
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.text-on-dark.text-high-contrast {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.text-on-light.text-high-contrast {
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}

/* Improved Adaptive Text Color Class */
.adaptive-text {
    color: var(--text-primary);
}

.adaptive-text-light {
    color: var(--text-inverse);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.adaptive-text-dark {
    color: var(--neutral-900);
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.2);
}

/* Emoji Contrast Fix */
.emoji {
    text-shadow: none !important;
    font-style: normal;
    display: inline-block;
    margin: 0 0.2em;
}

/* Emoji Styling */
.emoji {
    font-style: normal;
    display: inline-block;
    font-size: 1.2em;
    line-height: 1;
    vertical-align: middle;
    margin: 0 0.2em;
    text-shadow: none !important;
}

.emoji-lg {
    font-size: 2em;
}

.emoji-xl {
    font-size: 3em;
    display: block;
    margin: 0 auto var(--spacing-sm);
}

.dark-bg .emoji,
.bg-primary .emoji,
.bg-secondary .emoji,
.bg-accent .emoji,
[class*="primary-"] .emoji,
[class*="secondary-"] .emoji,
[class*="accent-"] .emoji,
.suggestion-card .emoji {
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
}

/* Dynamic Background Text Contrast */
.bg-primary .adaptive-text,
.bg-secondary .adaptive-text,
.bg-accent .adaptive-text,
.bg-success .adaptive-text,
.bg-error .adaptive-text,
.bg-warning .adaptive-text,
.bg-gradient .adaptive-text,
[class*="primary-"] .adaptive-text,
[class*="secondary-"] .adaptive-text,
[class*="accent-"] .adaptive-text,
[class*="success-"] .adaptive-text,
[class*="error-"] .adaptive-text,
[class*="warning-"] .adaptive-text,
[class*="neutral-700"] .adaptive-text,
[class*="neutral-800"] .adaptive-text,
[class*="neutral-900"] .adaptive-text {
    color: var(--text-inverse);
}

/* Neutral and light backgrounds */
.bg-neutral-50 .adaptive-text,
.bg-neutral-100 .adaptive-text,
.bg-neutral-200 .adaptive-text,
.bg-neutral-300 .adaptive-text,
.bg-neutral-400 .adaptive-text,
.bg-neutral-500 .adaptive-text,
.bg-neutral-600 .adaptive-text {
    color: var(--text-primary);
}

/* Feature cards with gradient backgrounds */
.feature-card .adaptive-text {
    position: relative;
    z-index: 2;
}

input[type='number']::-webkit-inner-spin-button,
input[type='number']::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type='number'] {
    -moz-appearance: textfield;
    appearance: textfield;
}