/* TasteFinder Premium Stylesheet - Glassmorphic Slate Dark Theme */

:root {
    --bg-main: #08070f;
    --bg-darker: #040307;
    --accent-coral: #E23744;
    --accent-coral-glow: rgba(226, 55, 68, 0.35);
    --accent-amber: #FFB800;
    --accent-amber-glow: rgba(255, 184, 0, 0.25);
    --accent-indigo: #6366F1;
    --accent-indigo-glow: rgba(99, 102, 241, 0.25);
    --text-primary: #f3f0ef;
    --text-secondary: #9e9aab;
    --glass-bg: rgba(17, 15, 30, 0.65);
    --glass-border: rgba(255, 255, 255, 0.05);
    --panel-border-focus: var(--accent-coral);
    --card-shadow: 0 12px 40px -10px rgba(0, 0, 0, 0.8);
    
    /* TasteFinder Border Radius Spec */
    --rounded-sm: 4px;
    --rounded-default: 8px;
    --rounded-md: 12px;
    --rounded-lg: 16px;
    --rounded-full: 9999px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Typography Scale */
h1, h2, h3, .logo-area h1 {
    font-family: 'DM Sans', sans-serif;
}

/* Ambient Glow Blobs */
.background-glows {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.2;
}

.glow-1 {
    top: -10%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--accent-coral) 0%, transparent 70%);
}

.glow-2 {
    bottom: -15%;
    right: -15%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--accent-indigo) 0%, transparent 70%);
}

.glow-3 {
    top: 35%;
    left: 35%;
    width: 45vw;
    height: 45vw;
    background: radial-gradient(circle, var(--accent-amber) 0%, transparent 70%);
}

/* Base Layout */
.app-container {
    max-width: 1350px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.logo-area {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.9rem;
    margin-bottom: 0.6rem;
}

.logo-icon {
    font-size: 2.8rem;
    background: linear-gradient(135deg, var(--accent-coral), var(--accent-indigo));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 15px var(--accent-coral-glow));
}

.logo-area h1 {
    font-size: 3.2rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    background: linear-gradient(135deg, var(--text-primary) 40%, var(--text-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ai-badge {
    font-size: 1.1rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-coral), var(--accent-indigo));
    color: white;
    -webkit-text-fill-color: white;
    padding: 0.25rem 0.65rem;
    border-radius: var(--rounded-default);
    vertical-align: middle;
    margin-left: 0.5rem;
    box-shadow: 0 0 20px rgba(226, 55, 68, 0.4);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.app-header .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* Grid Layout */
.main-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 2.5rem;
    align-items: start;
    flex: 1;
}

.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-radius: var(--rounded-lg);
    box-shadow: var(--card-shadow);
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

/* Control Preferences Panel */
.control-panel {
    padding: 2.2rem;
    position: sticky;
    top: 2rem;
}

.panel-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 1rem;
}

.panel-title i {
    color: var(--accent-coral);
    font-size: 1.25rem;
}

.input-group {
    margin-bottom: 1.8rem;
}

.input-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.7rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.input-group label i {
    margin-right: 0.4rem;
    color: var(--accent-indigo);
}

select, textarea {
    width: 100%;
    background-color: rgba(5, 3, 10, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--rounded-default);
    padding: 0.9rem 1.1rem;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

select:focus, textarea:focus {
    outline: none;
    border-color: var(--panel-border-focus);
    box-shadow: 0 0 18px var(--accent-coral-glow);
    background-color: rgba(5, 3, 10, 0.9);
}

/* Radio button budget selectors */
.budget-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.7rem;
}

.budget-pill {
    position: relative;
    cursor: pointer;
}

.budget-pill input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.budget-pill span {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: rgba(5, 3, 10, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--rounded-default);
    padding: 0.7rem 0.3rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
}

.budget-pill span small {
    font-size: 0.7rem;
    opacity: 0.7;
    margin-top: 0.15rem;
    font-weight: 400;
}

.budget-pill input:checked + span {
    border-color: var(--accent-coral);
    background: linear-gradient(135deg, rgba(226, 55, 68, 0.15), rgba(99, 102, 241, 0.15));
    color: var(--text-primary);
    box-shadow: 0 0 12px rgba(226, 55, 68, 0.25);
}

/* Slider Controls */
.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.7rem;
}

.slider-header label {
    margin-bottom: 0;
}

.badge {
    background: linear-gradient(135deg, var(--accent-coral), var(--accent-indigo));
    padding: 0.2rem 0.6rem;
    border-radius: var(--rounded-sm);
    font-size: 0.85rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.3);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--rounded-full);
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-coral);
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-coral);
    transition: transform 0.15s cubic-bezier(0.16, 1, 0.3, 1);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.3);
}

/* Range Slider Widget Custom Styles */
.range-widget {
    margin-top: 0.8rem;
    margin-bottom: 0.8rem;
}

.range-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.range-bubble {
    background: rgba(18, 15, 30, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    padding: 0.35rem 0.8rem;
    border-radius: var(--rounded-full);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
    text-align: center;
    width: 95px;
    outline: none;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.range-bubble:focus {
    border-color: var(--accent-coral);
    box-shadow: 0 0 10px var(--accent-coral-glow);
    background: rgba(18, 15, 30, 0.95);
}

.range-container {
    position: relative;
    width: 100%;
    height: 6px;
    margin-bottom: 1.4rem;
}

.range-container .slider-track {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--rounded-full);
    z-index: 1;
}

.range-container input[type="range"] {
    position: absolute;
    width: 100%;
    height: 6px;
    top: 0;
    left: 0;
    background: none;
    pointer-events: none;
    -webkit-appearance: none;
    appearance: none;
    z-index: 2;
    outline: none;
}

.range-container input[type="range"]::-webkit-slider-thumb {
    pointer-events: auto;
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #3b82f6; /* Premium blue handle color */
    cursor: pointer;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.8);
    transition: transform 0.15s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    z-index: 3;
}

.range-container input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.3);
}

.range-container input[type="range"]::-moz-range-thumb {
    pointer-events: auto;
    width: 18px;
    height: 18px;
    border: none;
    border-radius: 50%;
    background: #3b82f6;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.8);
    transition: transform 0.15s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    z-index: 3;
}

.range-container input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.3);
}

.range-summary {
    text-align: center;
    margin-top: 0.6rem;
}

#budget-range-text {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.3px;
}

.gradient-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-coral), var(--accent-indigo));
    border: none;
    border-radius: var(--rounded-default);
    padding: 1.1rem;
    color: white;
    font-family: 'DM Sans', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.gradient-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(226, 55, 68, 0.5);
    filter: brightness(1.15);
}

.gradient-btn:active {
    transform: translateY(1px);
}

/* Results section styling */
.results-dashboard {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Fallback Warning Box */
.alert-box {
    display: flex;
    gap: 1.2rem;
    padding: 1.5rem;
    border-left: 4px solid var(--accent-amber);
    background: rgba(255, 184, 0, 0.05);
}

.alert-icon {
    font-size: 2rem;
    color: var(--accent-amber);
}

.alert-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
    color: var(--accent-amber);
}

.alert-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* State Screens (Empty / Loading) */
.empty-state {
    padding: 6.5rem 3rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.empty-icon {
    font-size: 5.5rem;
    color: var(--accent-coral);
    margin-bottom: 2rem;
    opacity: 0.85;
}

.animate-float {
    animation: float 4.5s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
    100% { transform: translateY(0px); }
}

.empty-state h3 {
    font-size: 1.7rem;
    font-weight: 700;
    margin-bottom: 0.9rem;
    letter-spacing: -0.5px;
}

.empty-state p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 440px;
    line-height: 1.6;
}

/* Skeleton loader shimmers */
.skeleton-card {
    height: 230px;
    margin-bottom: 1.8rem;
    position: relative;
    overflow: hidden;
}

.shimer::after {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    background-image: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.02) 20%,
        rgba(255, 255, 255, 0.06) 60%,
        rgba(255, 255, 255, 0) 100%
    );
    animation: shimmer 1.8s infinite;
    content: '';
}

@keyframes shimmer {
    100% {
        transform: translateX(100%);
    }
}

/* Cards lists recommendations container */
.recommendations-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.rec-card {
    position: relative;
    padding: 2.2rem;
    overflow: hidden;
}

.rec-card:hover {
    transform: translateY(-4px);
    border-color: rgba(226, 55, 68, 0.25);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 15px var(--accent-coral-glow);
}

.rec-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 4px;
    background: linear-gradient(to bottom, var(--accent-coral), var(--accent-indigo));
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1.2rem;
    gap: 1.5rem;
}

.restaurant-title {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

/* Glowing Rank Badges */
.rank-badge {
    width: 42px;
    height: 42px;
    border-radius: var(--rounded-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
    flex-shrink: 0;
    font-family: 'DM Sans', sans-serif;
}

.rank-1 {
    background: linear-gradient(135deg, #ffd700, #ffa500);
    color: #000;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.rank-2 {
    background: linear-gradient(135deg, #f0f0f0, #adadad);
    color: #000;
    box-shadow: 0 0 15px rgba(240, 240, 240, 0.4);
}

.rank-3 {
    background: linear-gradient(135deg, #e4a054, #8b4513);
    color: #fff;
    box-shadow: 0 0 15px rgba(228, 160, 84, 0.4);
}

.restaurant-name {
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.meta-badges {
    display: flex;
    gap: 0.8rem;
    align-items: center;
    flex-shrink: 0;
}

/* TasteFinder Rating Chips */
.card-rating-badge {
    background: rgba(255, 184, 0, 0.12);
    border: 1px solid rgba(255, 184, 0, 0.35);
    color: var(--accent-amber);
    padding: 0.4rem 0.8rem;
    border-radius: var(--rounded-full);
    font-weight: 700;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.card-rating-badge i {
    text-shadow: 0 0 5px rgba(255, 184, 0, 0.4);
}

.card-cost-badge {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: var(--rounded-full);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.3px;
}

.restaurant-cuisines {
    font-size: 0.98rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.restaurant-cuisines i {
    color: var(--accent-indigo);
}

/* AI Personalized explanation box with Tertiary Sparkles */
.explanation-box {
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--rounded-md);
    padding: 1.4rem;
    position: relative;
    margin-top: 0.5rem;
}

.explanation-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #818cf8; /* Light Indigo for high contrast */
    margin-bottom: 0.65rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.explanation-title i {
    filter: drop-shadow(0 0 5px var(--accent-indigo-glow));
}

.explanation-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    font-style: italic;
    font-weight: 400;
}

.hidden {
    display: none !important;
}

@media (max-width: 1024px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
    .control-panel {
        position: static;
    }
}