:root {
    --sookth-primary: #2563eb;
    --sookth-secondary: #0891b2;
    --sookth-accent: #f97316;
    --sookth-success: #10b981;
    --sookth-danger: #ef4444;
    --sookth-bg: #f0f9ff;
    --sookth-text: #0f172a;
    --sookth-light: #f8fafc;
}

* {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
}

html, body {
    height: 100%;
}

body {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    min-height: 100vh;
    color: var(--sookth-text);
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* ========== NAVBAR ========== */
.navbar {
    background: linear-gradient(90deg, var(--sookth-primary) 0%, var(--sookth-secondary) 100%) !important;
    padding: 0.5rem 0;
}

.navbar-brand {
    font-size: 1.2rem;
    text-decoration: none;
    color: white !important;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
}

/* ========== LOGO ========== */
.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    padding: 0;
    flex-shrink: 0;
}

.logo-svg {
    width: 100%;
    height: 100%;
    transition: transform 0.3s ease;
}

.navbar-brand:hover .logo-svg {
    transform: scale(1.05) rotate(-5deg);
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.brand-name {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.3px;
    line-height: 1.1;
    color: white;
}
    letter-spacing: 0.5px;
    line-height: 1.1;
}

.brand-tagline {
    font-size: 0.7rem;
    font-weight: 500;
    opacity: 0.9;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.9);
}

.nav-link {
    transition: all 0.3s ease;
    border-radius: 0.4rem;
    padding: 0.5rem 1rem;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    opacity: 1;
}

/* ========== FOOTER ========== */
.footer-section {
    background: var(--sookth-light);
    margin-top: auto;
}

/* ========== MAIN CONTENT ========== */
.main-content {
    padding-top: 2rem;
    padding-bottom: 2rem;
    flex: 1;
}

/* ========== HOME PAGE ========== */
.display-5 {
    color: var(--sookth-primary);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.lead {
    font-size: 1.1rem;
    line-height: 1.7;
}

.feature-icon {
    font-size: 5rem;
    color: var(--sookth-primary);
    opacity: 0.15;
}

/* ========== CATEGORY SECTIONS ========== */
.category-header {
    position: relative;
    padding-bottom: 1rem;
}

.category-header h3 {
    color: var(--sookth-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.category-header h3::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.5rem;
    background: linear-gradient(180deg, var(--sookth-primary) 0%, var(--sookth-secondary) 100%);
    border-radius: 2px;
}

.category-divider {
    height: 2px;
    background: linear-gradient(90deg, var(--sookth-primary) 0%, transparent 100%);
    border-radius: 1px;
}

.category-section {
    animation: fadeInUp 0.5s ease;
}

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

/* ========== CALCULATOR CARDS ========== */
.calculator-card {
    border: 0;
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
    position: relative;
}

.calculator-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
}

.calculator-card .card-header {
    padding: 0.75rem 1.25rem;
    border-bottom: 2px solid rgba(37, 99, 235, 0.1);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(8, 145, 178, 0.05) 100%) !important;
}

.calculator-card .card-title {
    color: var(--sookth-primary);
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.calculator-card .card-body {
    padding: 1.5rem 1.25rem;
}

.calculator-card .btn {
    transition: all 0.2s ease;
    border-radius: 0.5rem;
    font-weight: 600;
}

.calculator-card .btn-primary {
    background: linear-gradient(135deg, var(--sookth-primary) 0%, var(--sookth-secondary) 100%);
    border: 0;
}

.calculator-card .btn-primary:hover {
    background: linear-gradient(135deg, var(--sookth-primary) 0%, var(--sookth-secondary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.3);
}

/* ========== BUTTONS ========== */
.btn-primary {
    background: linear-gradient(135deg, var(--sookth-primary) 0%, var(--sookth-secondary) 100%);
    border: 0;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--sookth-primary) 0%, var(--sookth-secondary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.3);
    color: white;
}

.btn-outline-primary {
    color: var(--sookth-primary);
    border: 2px solid var(--sookth-primary);
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-outline-primary:hover {
    background: var(--sookth-primary);
    border-color: var(--sookth-primary);
    color: white;
}

/* ========== INFO CARDS ========== */
.info-card {
    padding: 2rem 1.5rem;
    border-radius: 0.75rem;
    background: white;
    transition: all 0.3s ease;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.info-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.1);
}

.info-icon {
    font-size: 2.5rem;
    color: var(--sookth-primary);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(8, 145, 178, 0.1) 100%);
    margin: 0 auto;
}

.info-card h5 {
    color: var(--sookth-primary);
}

/* ========== CALCULATOR PAGE ========== */
.card {
    border: 0 !important;
    border-radius: 0.75rem;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

#calculator-results {
    margin-top: 2rem;
    animation: slideIn 0.3s ease;
}

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

#calculator-results .result-item {
    border-radius: 0.5rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(8, 145, 178, 0.05) 100%);
    border: 1px solid rgba(37, 99, 235, 0.15);
    padding: 1.25rem;
    transition: all 0.2s ease;
}

#calculator-results .result-item:hover {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(8, 145, 178, 0.1) 100%);
    transform: translateX(4px);
}

#calculator-results .result-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: rgba(37, 99, 235, 0.7);
    font-weight: 700;
    letter-spacing: 0.5px;
}

#calculator-results .result-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--sookth-primary);
    margin-top: 0.5rem;
}

/* ========== FORM ELEMENTS ========== */
.form-control, .form-select {
    border-radius: 0.5rem;
    border: 1px solid #e0e7ff;
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
    font-size: 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--sookth-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-label {
    font-weight: 600;
    color: var(--sookth-text);
    margin-bottom: 0.5rem;
}

/* ========== HONEYPOT ========== */
.honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ========== BADGES ========== */
.badge {
    padding: 0.4rem 0.75rem;
    border-radius: 0.4rem;
    font-weight: 600;
    font-size: 0.75rem;
}

/* ========== ALERTS ========== */
.alert {
    border-radius: 0.75rem;
    border: 0;
}

.alert-info {
    background: linear-gradient(135deg, rgba(8, 145, 178, 0.1) 0%, rgba(37, 99, 235, 0.05) 100%);
    color: var(--sookth-secondary);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .brand-tagline {
        display: none;
    }
    
    .logo-container {
        width: 44px;
        height: 44px;
    }
    
    .brand-name {
        font-size: 1rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    .feature-icon {
        font-size: 3rem;
    }
    
    .info-card {
        margin-bottom: 1.5rem;
    }
}

/* ========== SEARCH FEATURE ========== */
.search-box-container {
    max-width: 600px;
}

.search-form-home .input-group {
    border-radius: 0.5rem;
    overflow: hidden;
}

.search-form-home .input-group-text {
    border: 1px solid #e5e7eb;
    padding: 0.75rem 1rem;
}

.search-form-home .form-control {
    border: 1px solid #e5e7eb;
    padding: 0.75rem 1rem;
}

.search-form-home .form-control:focus {
    box-shadow: none;
    border-color: var(--sookth-primary);
}

.popular-searches {
    padding-left: 0.25rem;
}

.popular-searches .badge {
    padding: 0.35rem 0.65rem;
    font-weight: 500;
    transition: all 0.2s;
}

.popular-searches .badge:hover {
    background-color: var(--sookth-primary) !important;
    color: white !important;
    transform: translateY(-1px);
}

/* Search Results */
.calculator-card {
    transition: all 0.3s ease;
    border: none;
}

.calculator-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1) !important;
}

.calculator-card .stretched-link::after {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
    content: "";
}

/* Navbar Search */
.navbar-collapse form .input-group {
    transition: all 0.2s;
}

.navbar-collapse form .input-group:focus-within {
    box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
    border-radius: 0.25rem;
}

.navbar-collapse form .form-control {
    background-color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.navbar-collapse form .form-control:focus {
    background-color: white;
    border-color: white;
    box-shadow: none;
}

.navbar-collapse form .btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.2);
}