:root {
    --spain-red: #c60b1e;
    --spain-yellow: #ffc400;
    --spain-red-dark: #a00a18;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
}

.spain-gradient {
    background: linear-gradient(135deg, var(--spain-red) 0%, var(--spain-yellow) 100%);
}

.spain-gradient-text {
    background: linear-gradient(135deg, var(--spain-red) 0%, var(--spain-yellow) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c60b1e' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(198, 11, 30, 0.1) 0%, transparent 70%);
}

.domain-card {
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.domain-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(198, 11, 30, 0.15);
    border-color: var(--spain-red);
}

.feature-card {
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.search-box {
    transition: all 0.3s ease;
}

.search-box:focus-within {
    box-shadow: 0 0 0 3px rgba(198, 11, 30, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, var(--spain-red) 0%, var(--spain-red-dark) 100%);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(198, 11, 30, 0.3);
}

.step-card {
    position: relative;
}

.step-card::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -30px;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--spain-red), transparent);
}

.step-card:last-child::after {
    display: none;
}

@media (max-width: 768px) {
    .step-card::after {
        display: none;
    }
}

.loading-spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--spain-red);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.spain-flag-stripe {
    height: 4px;
    background: linear-gradient(90deg, var(--spain-red) 33.33%, var(--spain-yellow) 33.33%, var(--spain-yellow) 66.66%, var(--spain-red) 66.66%);
}

.section-title {
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--spain-red), var(--spain-yellow));
    border-radius: 2px;
}

.section-title.center::after {
    left: 50%;
    transform: translateX(-50%);
}

.domain-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--spain-red), var(--spain-yellow));
    color: white;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.875rem;
}

.result-available {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.result-unavailable {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.tooltip {
    position: relative;
}

.tooltip:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1rem;
    background: #1f2937;
    color: white;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    white-space: nowrap;
    z-index: 50;
}

@media (max-width: 640px) {
    .hero-section {
        padding-top: 2rem;
        padding-bottom: 2rem;
    }
}

nav a.active {
    color: var(--spain-red);
    border-bottom: 2px solid var(--spain-red);
}