:root {
    --bg-color: #0a0e17;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.5);
    
    --card-bg: rgba(30, 41, 59, 0.4);
    --card-border: rgba(255, 255, 255, 0.1);
    --card-hover-bg: rgba(30, 41, 59, 0.7);
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
}

/* Light Theme Variables */
body.light-theme {
    --bg-color: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.3);
    
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(0, 0, 0, 0.1);
    --card-hover-bg: rgba(255, 255, 255, 0.95);
}

body.light-theme .hero h1 {
    background: linear-gradient(to right, #0f172a, #475569);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.light-theme .navbar {
    background: rgba(248, 250, 252, 0.8);
}

body.light-theme .theme-btn {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
    border-color: rgba(0, 0, 0, 0.1);
}

body.light-theme .theme-btn:hover {
    background: rgba(0, 0, 0, 0.1);
}

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

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

/* Background Effects */
.background-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #3b82f6, transparent 70%);
}

.blob-2 {
    bottom: -20%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, #8b5cf6, transparent 70%);
    animation-delay: -5s;
}

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

/* Navbar */
.navbar {
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--card-border);
    background: rgba(10, 14, 23, 0.7);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.theme-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--card-border);
    color: #ffffff;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.theme-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo span {
    color: var(--accent-color);
}

/* Container */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 4rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

/* Search Form */
.search-container {
    display: flex;
    max-width: 700px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50px;
    padding: 0.5rem;
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.search-container:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

#search-input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 1rem 1.5rem;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-family: inherit;
    outline: none;
}

#search-input::placeholder {
    color: var(--text-secondary);
}

#search-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 40px;
    padding: 0.8rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

#search-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--accent-glow);
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Loading State */
#loading-state {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-secondary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--accent-color);
    animation: spin 1s ease-in-out infinite;
    margin: 0 auto 1rem;
}

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

/* Error State */
.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 2rem;
}

/* Results Section */
.results-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.carrier-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(12px);
    transition: all 0.3s ease;
}

.carrier-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.card-header {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.card-header-left h3 {
    font-size: 1.3rem;
    margin-bottom: 0.3rem;
    color: var(--text-primary);
}

.card-header-left p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-inactive {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.expand-icon {
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.carrier-card.expanded .expand-icon {
    transform: rotate(180deg);
}

.card-details {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
}

.carrier-card.expanded .card-details {
    padding: 0 1.5rem 1.5rem;
    max-height: 500px;
    opacity: 1;
    border-top: 1px solid var(--card-border);
    margin-top: 1rem;
    padding-top: 1.5rem;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.detail-item h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.detail-item p {
    font-size: 1.05rem;
    color: var(--text-primary);
    font-weight: 500;
    overflow-wrap: break-word;
    word-break: break-word;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .search-container { flex-direction: column; border-radius: 16px; }
    #search-btn { border-radius: 12px; margin-top: 0.5rem; justify-content: center; }
    #search-input { border-radius: 12px; }
    .card-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .card-header-right { align-self: flex-end; margin-top: -2rem; }
}

.view-profile-btn {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.view-profile-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 10px var(--accent-glow);
}