/* ==========================================================================
   Base Styles
   Typography, links, buttons, forms - global element styles
   ========================================================================== */

/* ==========================================================================
   Typography
   ========================================================================== */

h1, .h1 {
    font-family: var(--font-secondary);
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-heading);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
}

h2, .h2 {
    font-family: var(--font-secondary);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-heading);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
}

h3, .h3 {
    font-family: var(--font-primary);
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-heading);
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

h4, .h4 {
    font-family: var(--font-primary);
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-heading);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

h5, .h5 {
    font-family: var(--font-primary);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-gray-800);
    margin-bottom: var(--space-2);
}

h6, .h6 {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--color-gray-800);
    margin-bottom: var(--space-2);
}

/* Responsive typography */
@media (min-width: 768px) {
    h1, .h1 { font-size: var(--text-5xl); }
    h2, .h2 { font-size: var(--text-4xl); }
    h3, .h3 { font-size: var(--text-3xl); }
}

@media (min-width: 1024px) {
    h1, .h1 { font-size: var(--text-6xl); }
}

/* Paragraphs */
p {
    font-weight: var(--font-light, 300);
    color: var(--color-gray-600);
    margin-bottom: var(--space-4);
    line-height: var(--leading-relaxed);
}

p:last-child {
    margin-bottom: 0;
}

/* Lead text */
.lead {
    font-size: var(--text-xl);
    font-weight: var(--font-light, 300);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
}

/* Small text */
.small, small {
    font-size: var(--text-sm);
}

/* Text colors */
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-muted { color: var(--color-gray-500); }
.text-white { color: var(--color-white); }

/* ==========================================================================
   Links
   ========================================================================== */

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

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

/* Link with elegant underline animation */
.link {
    position: relative;
    color: var(--color-primary-text);
    text-decoration: none;
}

.link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width var(--transition-normal);
}

.link:hover::after {
    width: 100%;
}

/* Link with persistent underline */
.link-underline {
    color: var(--color-primary-text);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    transition: text-decoration-color var(--transition-fast);
}

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

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--btn-padding-y) var(--btn-padding-x);
    font-size: var(--btn-font-size);
    font-weight: var(--btn-font-weight);
    line-height: 1;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--btn-radius);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Primary button */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

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

/* Secondary button */
.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--color-secondary-contrast);
    border-color: var(--color-secondary);
}

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

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

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

/* White outline (for dark backgrounds) */
.btn-outline-white {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

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

/* Ghost button */
.btn-ghost {
    background-color: transparent;
    color: var(--color-primary);
    border-color: transparent;
}

.btn-ghost:hover {
    background-color: var(--color-gray-100);
}

/* Button sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

/* Full width button */
.btn-block {
    display: flex;
    width: 100%;
}

/* Button with icon */
.btn svg,
.btn .icon {
    width: 1.25em;
    height: 1.25em;
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
}

.form-input,
.form-textarea,
.form-select {
    display: block;
    width: 100%;
    padding: var(--input-padding-y) var(--input-padding-x);
    font-size: var(--input-font-size);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    border: 1px solid var(--input-border-color);
    border-radius: var(--input-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--input-focus-border-color);
    box-shadow: 0 0 0 3px rgb(49 130 206 / 0.15);
    outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gray-400);
}

/* Textarea */
.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--space-3) center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: var(--space-10);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    accent-color: var(--color-primary);
}

.form-check-label {
    color: var(--color-gray-700);
}

/* Error state */
.form-input.is-error,
.form-textarea.is-error,
.form-select.is-error {
    border-color: var(--color-error);
}

.form-error {
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-error);
}

/* Help text */
.form-help {
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

/* ==========================================================================
   Lists
   ========================================================================== */

.list {
    margin-bottom: var(--space-4);
    padding-left: var(--space-6);
}

.list li {
    margin-bottom: var(--space-2);
    color: var(--color-gray-600);
}

.list-unstyled {
    list-style: none;
    padding-left: 0;
}

.list-inline {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    list-style: none;
    padding-left: 0;
}

/* Check list */
.list-check {
    list-style: none;
    padding-left: 0;
}

.list-check li {
    position: relative;
    padding-left: var(--space-8);
}

.list-check li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: var(--font-bold);
}

/* ==========================================================================
   Images
   ========================================================================== */

.img-fluid {
    max-width: 100%;
    height: auto;
}

.img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.img-contain {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.img-rounded {
    border-radius: var(--radius-lg);
}

.img-circle {
    border-radius: var(--radius-full);
}

/* ==========================================================================
   Section Styles
   ========================================================================== */

.section {
    padding: var(--section-md) 0;
}

.section-sm {
    padding: var(--section-sm) 0;
}

.section-lg {
    padding: var(--section-lg) 0;
}

/* Section headers */
.section-header {
    max-width: 700px;
    margin-bottom: var(--space-12);
    text-align: center;
}

.section-header.text-left {
    text-align: left;
    margin-left: 0;
}

.section-subtitle {
    display: inline-block;
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    color: var(--color-primary-text);
}

.section-title {
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
}

/* Background variations */
.bg-white { background-color: var(--color-white); }
.bg-light { background-color: var(--color-gray-50); }
.bg-dark { background-color: var(--color-gray-900); }
.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }

/* Luxury palette backgrounds */
.bg-bone { background-color: var(--color-bone); }
.bg-cream { background-color: var(--color-bone); }
.bg-walnut { background-color: var(--color-walnut); }
.bg-walnut-deep { background-color: var(--color-walnut-deep); }
.bg-citron { background-color: var(--color-primary); }

/* Dark backgrounds need light text */
.bg-dark,
.bg-primary,
.bg-walnut,
.bg-walnut-deep {
    color: var(--color-white);
}

/* Citron background needs dark text for accessibility (white on #b5b800 = 2.1:1 contrast) */
.bg-citron {
    color: var(--color-walnut);
}

.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4, .bg-dark h5, .bg-dark h6,
.bg-primary h1, .bg-primary h2, .bg-primary h3, .bg-primary h4, .bg-primary h5, .bg-primary h6,
.bg-walnut h1, .bg-walnut h2, .bg-walnut h3, .bg-walnut h4, .bg-walnut h5, .bg-walnut h6,
.bg-walnut-deep h1, .bg-walnut-deep h2, .bg-walnut-deep h3, .bg-walnut-deep h4, .bg-walnut-deep h5, .bg-walnut-deep h6 {
    color: var(--color-white);
}

.bg-citron h1, .bg-citron h2, .bg-citron h3, .bg-citron h4, .bg-citron h5, .bg-citron h6 {
    color: var(--color-walnut);
}

.bg-dark p,
.bg-primary p,
.bg-walnut p,
.bg-walnut-deep p {
    color: var(--color-gray-300);
}

.bg-citron p {
    color: var(--color-walnut);
}

/* Citron background links use dark walnut for readability */
.bg-citron a {
    color: var(--color-walnut-deep);
}

.bg-citron a:hover {
    color: var(--color-walnut);
}

/* ==========================================================================
   Animations & Transitions
   ========================================================================== */

/* Subtle fade-in animation for scroll reveals */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.5s ease-out forwards;
}

/* Gentle image zoom on hover */
.img-zoom {
    overflow: hidden;
}

.img-zoom img {
    transition: transform var(--transition-slow);
}

.img-zoom:hover img {
    transform: scale(1.03);
}

/* Elegant scale down on click (for buttons) */
.scale-active:active {
    transform: scale(0.97);
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}