/*
 * Anzest - Ecommerce Design System
 * Extracted from Figma Prototype (Visual Analysis & Best Practices)
 */

:root {
    /* Colors */
    --color-primary: #000000; /* Assumed from text and main elements */
    --color-secondary: #ffffff; /* Assumed from background */
    --color-accent-beige: #F5F1E9; /* Assumed from button background */
    --color-accent-brown: #1A110A; /* Assumed from dark button background */
    --color-text-main: #000000;
    --color-text-muted: #666666; /* Assumed for secondary text */
    --color-border: #E5E5E5; /* Assumed for subtle borders */
    --color-background-light: #F8F8F8; /* Assumed for light backgrounds */

    /* Typography */
    --font-family-main: 'Cascadia Code Variable', 'Cascadia Code', 'Cascadia Mono', Consolas, 'Courier New', monospace;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-xxl: 36px;
    --font-size-hero: 48px;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --line-height-base: 1.5;
    --line-height-heading: 1.2;

    /* Spacing */
    --spacing-xxs: 2px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --spacing-xxxl: 64px;

    /* Borders & Shadows */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-full: 9999px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);

    /* Gray scale (form-specific) */
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-700: #404040;
    --gray-800: #262626;
}

/* Global Styles */
html {
    box-sizing: border-box;
}

*, *::before, *::after {
    box-sizing: inherit;
}

body {
    font-family: var(--font-family-main);
    font-size: var(--font-size-base);
    color: var(--color-text-main);
    line-height: var(--line-height-base);
    margin: 0;
    padding: 0;
    background-color: var(--color-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography Components */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    text-transform: none;
}

h1 {
    font-size: var(--font-size-hero);
}

h2 {
    font-size: var(--font-size-xxl);
}

h3 {
    font-size: var(--font-size-xl);
}

p {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    text-decoration: underline;
}

/* Navigation */
.nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-secondary);
}

.nav-logo {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-main);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) 0;
}

.nav-link:hover {
    color: var(--color-accent-brown);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    border: none;
    font-size: var(--font-size-sm);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--color-accent-beige);
    color: var(--color-text-main);
}

.btn-primary:hover {
    background-color: #ece7db;
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

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

.btn-dark {
    background-color: var(--color-accent-brown);
    color: var(--color-secondary);
}

.btn-dark:hover {
    background-color: #2a1a10;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 17, 10, 0.2);
}

.btn-dark:active {
    background-color: #110b06;
    transform: translateY(0);
    box-shadow: none;
}

.btn-dark:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--color-secondary), 0 0 0 4px var(--color-accent-brown);
}

.btn-dark:focus:not(:focus-visible) {
    outline: none;
    box-shadow: none;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    transform: translateY(-1px);
}

/* Product Card */
.product-card {
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    background-color: var(--color-secondary);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.product-image {
    width: 100%;
    aspect-ratio: 1/1;
    background-color: var(--color-background-light);
    object-fit: cover;
}

.product-info {
    padding: var(--spacing-md);
}

.product-title {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-main);
}

.product-price {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

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

.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);
}

/* Utility Classes (examples) */
.text-center {
    text-align: center;
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

/* Responsive Design (Basic Breakpoints) */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }

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

    .nav-links {
        gap: var(--spacing-md);
    }

    .heading-hero {
        font-size: var(--font-size-xxl);
    }
}

@media (max-width: 480px) {
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    .nav-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
    }
}

/* ============================================
 * Reservation Form
 * ============================================ */

.form-card {
    max-width: 480px;
    margin: 0 auto;
    padding: 80px var(--spacing-lg);
    animation: formCardEntrance 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes formCardEntrance {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.header {
    margin-bottom: var(--spacing-xxl);
}

.header h1 {
    font-size: var(--font-size-xxl);
    font-weight: var(--font-weight-medium);
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-sm);
    transition: opacity 0.2s ease-out;
}

.header p {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    font-weight: var(--font-weight-regular);
}

.header-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.55;
    margin-top: var(--spacing-sm);
    margin-bottom: 0;
}

.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Staggered entrance for fields within a step */
.form-step.active .field:nth-child(1) { animation: fieldReveal 0.35s cubic-bezier(0.16, 1, 0.3, 1) 0.04s both; }
.form-step.active .field:nth-child(2) { animation: fieldReveal 0.35s cubic-bezier(0.16, 1, 0.3, 1) 0.08s both; }
.form-step.active .field:nth-child(3) { animation: fieldReveal 0.35s cubic-bezier(0.16, 1, 0.3, 1) 0.12s both; }
.form-step.active .field:nth-child(4) { animation: fieldReveal 0.35s cubic-bezier(0.16, 1, 0.3, 1) 0.16s both; }
.form-step.active .field:nth-child(5) { animation: fieldReveal 0.35s cubic-bezier(0.16, 1, 0.3, 1) 0.20s both; }
.form-step.active .step-nav { animation: fieldReveal 0.35s cubic-bezier(0.16, 1, 0.3, 1) 0.24s both; }
.form-step.active .submit-btn:only-child { animation: fieldReveal 0.35s cubic-bezier(0.16, 1, 0.3, 1) 0.12s both; }

@keyframes fieldReveal {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.field label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--gray-700);
    letter-spacing: 0.01em;
    transition: color 0.2s ease;
}

.field input,
.field select,
.field textarea {
    width: 100%;
    padding: 14px var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--color-text-main);
    background-color: var(--color-secondary);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
    outline: none;
}

.field input::placeholder,
.field textarea::placeholder {
    color: var(--gray-400);
    transition: color 0.2s ease;
}

.field input:focus::placeholder,
.field textarea:focus::placeholder {
    color: var(--gray-300);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.06);
}

/* Highlight the label when the field is focused */
.field:focus-within label {
    color: var(--color-text-main);
}

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

.field select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23737373' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.date-field-wrapper {
    position: relative;
}

.date-field-wrapper input[type="date"] {
    padding-right: var(--spacing-md);
}



.row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.submit-btn {
    width: 100%;
    margin-top: var(--spacing-sm);
}

.submit-btn:active:not(:disabled) {
    transform: scale(0.98) translateY(0);
    box-shadow: none;
}

.submit-btn:disabled {
    background-color: var(--gray-300);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Progress bar */
.progress-track {
    width: 100%;
    height: 3px;
    background-color: var(--color-border);
    border-radius: 2px;
    margin-top: var(--spacing-lg);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--gray-800);
    border-radius: 2px;
    width: 0;
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Form steps */
.form-step {
    display: none;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.2s ease-out, transform 0.2s ease-out;
}

.form-step.active {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    opacity: 1;
    transform: translateY(0);
}

.form-step.entering {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    opacity: 0;
}

.form-step.leaving {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    opacity: 0;
}

.step-nav {
    display: flex;
    flex-direction: column-reverse;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    align-items: center;
}

.step-nav .btn-outline {
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    padding: 8px 16px;
    font-weight: var(--font-weight-medium);
    transition: color 0.2s ease;
}

.step-nav .btn-outline:hover {
    background: transparent;
    color: var(--color-text-main);
    transform: none;
    text-decoration: underline;
}

.step-nav .submit-btn {
    width: 100%;
    margin-top: 0;
}

.optional-tag {
    color: var(--gray-400);
    font-weight: 400;
}

/* Time grid */
.time-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.time-btn {
    padding: 12px 0;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    background: var(--color-secondary);
    font-size: var(--font-size-sm);
    font-family: inherit;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-main);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease;
}

.time-btn:hover {
    border-color: var(--gray-700);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.time-btn:active {
    transform: scale(0.97) translateY(0);
    box-shadow: none;
}

.time-btn.selected {
    background-color: var(--color-accent-brown);
    color: var(--color-secondary);
    border-color: var(--color-accent-brown);
    box-shadow: 0 2px 8px rgba(26, 17, 10, 0.25);
}

.footer {
    margin-top: var(--spacing-xxxl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer a {
    color: var(--color-text-main);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}

.footer a:hover {
    text-decoration: underline;
}

/* Success State */
.success {
    display: none;
    text-align: center;
    padding: 80px 0;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

.success.entering {
    display: block;
}

.success.visible {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.success-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-lg);
    background-color: var(--color-accent-beige);
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.success.visible .success-icon {
    animation: successPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s both;
}

@keyframes successPop {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.success-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-text-main);
}

.success h2 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

.success.visible h2 {
    animation: fadeSlideUp 0.4s ease-out 0.3s both;
}

.success.visible p {
    animation: fadeSlideUp 0.4s ease-out 0.4s both;
}

.success.visible .back-btn {
    animation: fadeSlideUp 0.4s ease-out 0.5s both;
}

@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.success p {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.back-btn:hover {
    border-color: var(--color-primary);
}

/* Validation */
.field.error input,
.field.error select,
.field.error textarea {
    border-color: #dc2626;
    animation: fieldShake 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes fieldShake {
    10%, 90% { transform: translateX(-1px); }
    20%, 80% { transform: translateX(2px); }
    30%, 50%, 70% { transform: translateX(-3px); }
    40%, 60% { transform: translateX(3px); }
    100% { transform: translateX(0); }
}

.field.error .error-msg {
    margin-top: var(--spacing-xxs);
    max-height: 24px;
    opacity: 1;
    transform: translateY(0);
}

.error-msg {
    font-size: 12px;
    color: #dc2626;
    margin-top: 0;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(-4px);
    transition: max-height 0.2s ease, opacity 0.2s ease, transform 0.2s ease, margin-top 0.2s ease;
}

/* Intro Screen Styles */
.intro-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    animation: formCardEntrance 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.intro-message {
    font-size: var(--font-size-base);
    color: var(--color-text-main);
    line-height: 1.6;
    text-align: center;
    background: var(--color-background-light);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    position: relative;
    overflow: hidden;
}

.intro-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--color-primary);
}

.intro-btn {
    width: auto;
    min-width: 160px;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    align-self: center;
    justify-content: center;
}

/* Medium screens */
@media (max-width: 640px) {
    .form-card {
        padding: 48px var(--spacing-lg);
    }

    .header {
        margin-bottom: var(--spacing-xl);
    }
}

/* Small screens */
@media (max-width: 480px) {
    .form-card {
        padding: 32px var(--spacing-md);
    }

    .header h1 {
        font-size: var(--font-size-xl);
    }

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

    .form-step.active {
        gap: var(--spacing-md);
    }

    .row {
        grid-template-columns: 1fr;
    }

    .time-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
    }

    .time-btn {
        padding: 10px 0;
        font-size: 13px;
    }

    .footer {
        margin-top: var(--spacing-xl);
    }
}

/* Very small screens */
@media (max-width: 360px) {
    .form-card {
        padding: 24px var(--spacing-sm);
    }

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

    .btn {
        padding: 10px 16px;
    }
}

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