/* CSS Custom Properties - Same as main page */
:root {
    --bg-gradient-start: #f0f2f5;
    --bg-gradient-end: #d9e2f1;
    --font-color: #333;
    --container-bg: rgba(255, 255, 255, 0.6);
    --container-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --heading-color: #2c3e50;
    --result-color: #3498db;
    --category-color: #95a5a6;
    --category-border: #bdc3c7;
    --button-bg: #3498db;
    --button-hover-bg: #2980b9;
    --button-shadow: rgba(52, 152, 219, 0.4);
    --control-bg: rgba(255, 255, 255, 0.7);
    --control-btn-color: #7f8c8d;
    --control-btn-active-bg: #3498db;
    --control-btn-active-color: white;
    /* Food menu specific */
    --option-btn-bg: rgba(255, 255, 255, 0.8);
    --option-btn-hover: rgba(52, 152, 219, 0.2);
    --option-btn-border: rgba(52, 152, 219, 0.3);
    --back-btn-bg: rgba(149, 165, 166, 0.3);
    --back-btn-hover: rgba(149, 165, 166, 0.5);
    --result-bg: rgba(52, 152, 219, 0.1);
}

body[data-theme="dark"] {
    --bg-gradient-start: #232526;
    --bg-gradient-end: #414345;
    --font-color: #ecf0f1;
    --container-bg: rgba(44, 62, 80, 0.7);
    --container-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --heading-color: #ecf0f1;
    --result-color: #5dade2;
    --category-color: #95a5a6;
    --category-border: #7f8c8d;
    --button-bg: #5dade2;
    --button-hover-bg: #85c1e9;
    --button-shadow: rgba(93, 173, 226, 0.4);
    --control-bg: rgba(52, 73, 94, 0.7);
    --control-btn-color: #bdc3c7;
    --control-btn-active-bg: #5dade2;
    --control-btn-active-color: #2c3e50;
    /* Food menu specific */
    --option-btn-bg: rgba(80, 80, 80, 0.8);
    --option-btn-hover: rgba(93, 173, 226, 0.3);
    --option-btn-border: rgba(93, 173, 226, 0.4);
    --back-btn-bg: rgba(100, 100, 100, 0.5);
    --back-btn-hover: rgba(100, 100, 100, 0.7);
    --result-bg: rgba(93, 173, 226, 0.15);
}

body {
    font-family: 'Poppins', 'Noto Sans KR', sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding-top: 120px;
    background: linear-gradient(120deg, var(--bg-gradient-start), var(--bg-gradient-end));
    color: var(--font-color);
    transition: background-color 0.3s, color 0.3s;
}

/* Site Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 15px 20px;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Page Navigation */
.page-nav {
    display: flex;
    gap: 8px;
    background: var(--control-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 8px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--container-shadow);
}

.page-nav-btn {
    padding: 12px 24px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1em;
    color: var(--font-color);
    background: transparent;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.page-nav-btn:hover {
    background: rgba(127, 140, 141, 0.2);
}

.page-nav-btn.active {
    background: var(--control-btn-active-bg);
    color: var(--control-btn-active-color);
    box-shadow: 0 2px 8px var(--button-shadow);
}

/* Header Controls */
.controls-header {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--control-bg);
    padding: 10px 20px;
    border-radius: 50px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--container-shadow);
}

/* Language Controls */
.lang-controls {
    display: flex;
    background-color: rgba(127, 140, 141, 0.2);
    border-radius: 20px;
    overflow: hidden;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--control-btn-color);
    padding: 8px 12px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9em;
    transition: background-color 0.3s, color 0.3s;
}

.lang-btn.active {
    background-color: var(--control-btn-active-bg);
    color: var(--control-btn-active-color);
    border-radius: 20px;
}

/* Theme Switch */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: #2196F3;
}

input:checked + .slider:before {
    transform: translateX(22px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Main Container */
.container {
    text-align: center;
    background: var(--container-bg);
    padding: 40px 50px;
    border-radius: 20px;
    box-shadow: var(--container-shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 90%;
    max-width: 600px;
}

/* Typography */
h1 {
    font-weight: 700;
    font-size: 2.5em;
    color: var(--heading-color);
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1em;
    color: var(--category-color);
    margin-bottom: 30px;
    font-weight: 400;
}

.step-title {
    font-size: 1.3em;
    font-weight: 600;
    margin-bottom: 25px;
    color: var(--font-color);
}

/* Step Sections */
.step-section {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.step-section.active {
    display: block;
}

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

/* Option Buttons */
.option-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.cuisine-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.option-btn {
    background: var(--option-btn-bg);
    border: 2px solid transparent;
    padding: 15px 25px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    color: var(--font-color);
    transition: all 0.2s ease;
    font-family: inherit;
}

.option-btn:hover {
    background: var(--option-btn-hover);
    border-color: var(--option-btn-border);
    transform: translateY(-2px);
}

.option-btn:active {
    transform: scale(0.98);
}

/* Back Button */
.back-btn {
    background: var(--back-btn-bg);
    border: none;
    padding: 10px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.95em;
    font-weight: 500;
    color: var(--font-color);
    transition: all 0.2s ease;
    margin-top: 10px;
    font-family: inherit;
}

.back-btn:hover {
    background: var(--back-btn-hover);
}

/* Result Section */
.result-container {
    margin-bottom: 25px;
}

.result-label {
    font-size: 1em;
    opacity: 0.8;
    margin-bottom: 15px;
}

/* Food Image */
.food-image-container {
    position: relative;
    width: 100%;
    max-width: 280px;
    height: 200px;
    margin: 0 auto 20px;
    border-radius: 16px;
    overflow: hidden;
    background: var(--result-bg);
}

.food-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
    transition: opacity 0.3s ease;
}

.food-image.hidden {
    display: none;
}

.image-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--result-bg);
}

.image-loading.hidden {
    display: none;
}

.image-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--category-border);
    border-top-color: var(--button-bg);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.result {
    background: var(--result-bg);
    border-radius: 15px;
    padding: 25px;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#food-result {
    font-size: 1.8em;
    font-weight: 700;
    color: var(--button-bg);
}

/* Food Description */
.food-description {
    font-size: 1em;
    color: var(--category-color);
    margin-top: 15px;
    padding: 0 10px;
    line-height: 1.5;
    font-style: italic;
    animation: fadeIn 0.4s ease-in-out;
}

.food-description.hidden {
    display: none;
}

.result-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

/* Spin Button */
.spin-btn {
    background: var(--button-bg);
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.2s ease;
    font-family: inherit;
}

.spin-btn:hover {
    background: var(--button-hover-bg);
}

.spin-btn:active {
    transform: scale(0.95);
}

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

/* Spinning Animation */
.spinning #food-result {
    animation: pulse 0.3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Footer */
footer {
    position: static;
    text-align: center;
    padding: 15px;
    font-size: 0.85em;
    color: var(--category-color);
    margin-top: auto;
    width: 100%;
}

footer p {
    margin: 0;
}

/* Responsive Design */
@media screen and (max-width: 600px) {
    .site-header {
        flex-direction: column;
        gap: 10px;
        padding: 10px;
    }

    .page-nav {
        width: 100%;
        justify-content: center;
    }

    .page-nav-btn {
        padding: 10px 20px;
        font-size: 0.9em;
        flex: 1;
        text-align: center;
    }

    .controls-header {
        padding: 6px 12px;
    }

    body {
        padding-top: 120px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 25px 20px;
    }

    h1 {
        font-size: 1.6em;
    }

    .subtitle {
        font-size: 0.9em;
    }

    .step-title {
        font-size: 1.1em;
    }

    .option-btn {
        padding: 12px 20px;
        font-size: 1em;
    }

    .cuisine-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    #food-result {
        font-size: 1.4em;
    }

    .result {
        padding: 20px;
    }

    .food-description {
        font-size: 0.9em;
        padding: 0 5px;
    }

    .lang-btn {
        padding: 6px 10px;
        font-size: 0.8em;
    }

    .theme-switch {
        width: 44px;
        height: 24px;
    }

    .slider:before {
        height: 18px;
        width: 18px;
        left: 3px;
        bottom: 3px;
    }

    input:checked + .slider:before {
        transform: translateX(20px);
    }

    .food-image-container {
        max-width: 220px;
        height: 160px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 600px;
        padding: 50px;
    }

    h1 {
        font-size: 2.5em;
    }

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

    #food-result {
        font-size: 2em;
    }

    .food-image-container {
        max-width: 320px;
        height: 220px;
    }
}

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

/* Focus States */
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--button-bg);
    outline-offset: 2px;
}

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