:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --accent: #f43f5e;
    --bg-dark: #0f172a;
    --card-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    background: linear-gradient(rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.9)), url('bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: float 20s infinite alternate;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -100px;
    right: -100px;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: #06b6d4;
    top: 40%;
    left: 20%;
    animation-delay: -10s;
}

@keyframes float {
    from { transform: translate(0, 0) scale(1); }
    to { transform: translate(50px, 100px) scale(1.1); }
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.logo h1 {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2.5rem;
    letter-spacing: -1px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo .icon {
    font-size: 2rem;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 300;
}

.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
}

.planner-card {
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    color: white;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.interest-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.chip {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 0.6rem 1.2rem;
    border-radius: 100px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.chip:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.chip.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.api-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

.hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.primary-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    border: none;
    padding: 1.2rem;
    border-radius: 14px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 2rem;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px var(--primary);
}

.primary-btn:active {
    transform: translateY(0);
}

/* Loader Animation */
.loader-dots {
    display: flex;
    gap: 4px;
}

.loader-dots span {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: bounce 0.6s infinite alternate;
}

.loader-dots span:nth-child(2) { animation-delay: 0.2s; }
.loader-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes bounce {
    to { opacity: 0.3; transform: translateY(-4px); }
}

/* Results Section */
.result-container {
    margin-top: 4rem;
    animation: fadeIn 0.8s ease-out;
}

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

.itinerary-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.weather-badge {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    border: 1px solid var(--glass-border);
}

.itinerary-grid {
    display: grid;
    gap: 1.5rem;
}

.day-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.day-card:hover {
    border-color: var(--primary);
    transform: translateX(5px);
}

.day-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.activity-item {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
}

.activity-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.activity-time {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.activity-desc {
    font-size: 0.95rem;
}

.footer {
    text-align: center;
    padding: 4rem 0;
    color: var(--text-muted);
    font-size: 0.8rem;
}

@media (max-width: 640px) {
    .input-row {
        grid-template-columns: 1fr;
    }
    .container {
        padding: 2rem 1rem;
    }
    .planner-card {
        padding: 1.5rem;
    }
}