/* ==========================================
   1. VARIABLES & RESET GLOBAL
   ========================================== */
:root {
    --primary: #f59e0b;
    --primary-hover: #d97706;
    --secondary: #1e293b;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --success: #22c55e;
    --whatsapp: #25d366;
    --whatsapp-hover: #1da851;
    --radius: 8px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

/* ==========================================
   2. NAVBAR
   ========================================== */
.navbar {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links a {
    color: var(--text-main);
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--primary);
}

/* ==========================================
   3. BOTONES
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
    font-size: 0.95rem;
}

.btn-primary {
    background-color: var(--primary);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: #000;
}

.btn-primary-sm {
    padding: 6px 14px;
    font-size: 0.85rem;
    background-color: var(--primary);
    color: #000;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

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

.btn-outline-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}

.btn-outline-sm:hover {
    color: var(--text-main);
    border-color: var(--text-main);
}

.btn-whatsapp {
    background-color: var(--whatsapp);
    color: #fff;
}

.btn-whatsapp:hover {
    background-color: var(--whatsapp-hover);
    color: #fff;
}

.full-width {
    width: 100%;
}

.flex-grow {
    flex-grow: 1;
}

/* ==========================================
   4. HERO & BUSCADOR
   ========================================== */
.hero {
    padding: 60px 0 40px 0;
    text-align: center;
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 1) 100%);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.hero p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.search-box {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    background-color: var(--bg-card);
    padding: 15px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    max-width: 900px;
    margin: 0 auto;
}

.input-group {
    flex: 1;
    min-width: 200px;
    display: flex;
    align-items: center;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0 12px;
}

.input-group i {
    color: var(--text-muted);
    margin-right: 8px;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 12px 0;
    background: transparent;
    border: none;
    color: var(--text-main);
    outline: none;
}

.input-group select option {
    background-color: var(--bg-card);
    color: var(--text-main);
}

/* ==========================================
   5. TARJETAS DE CONTRATISTAS
   ========================================== */
.directory-section {
    padding: 40px 0;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.contractors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.contractor-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
}

.contractor-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
}

.card-header-info {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.contractor-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary);
}

.contractor-title h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.badge-verified {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    background-color: rgba(34, 197, 94, 0.15);
    color: var(--success);
    padding: 2px 8px;
    border-radius: 12px;
}

.card-meta {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.card-meta p {
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-actions {
    display: flex;
    gap: 10px;
}

.card-actions .btn {
    flex: 1;
}

/* ==========================================
   6. MODALES Y FORMULARIOS
   ========================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    z-index: 1000;
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 30px;
    max-width: 500px;
    width: 100%;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-lg {
    max-width: 650px;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 1.8rem;
    color: var(--text-muted);
    cursor: pointer;
}

.modal-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-main);
    outline: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
}

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.input-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
    margin-top: 4px;
}

.calc-result-box {
    background-color: var(--bg-dark);
    border: 1px solid var(--primary);
    border-radius: var(--radius);
    padding: 15px;
    text-align: center;
    margin: 15px 0;
}

.calc-result-box h2 {
    color: var(--primary);
    font-size: 1.8rem;
}

.divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 20px 0;
}

/* AUTH TABS Y PASOS */
.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 12px;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.role-selection-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 20px;
}

.role-card {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
}

.role-icon {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.btn-back-link {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.steps-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 25px;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.step-item span {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background-color: var(--border-color);
    color: var(--text-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

.step-item.active span {
    background-color: var(--primary);
    color: #000;
}

.step-line {
    width: 30px;
    height: 2px;
    background-color: var(--border-color);
}

.step-content {
    display: none;
}

.step-content.active {
    display: block;
}

.plans-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 15px;
}

.plan-card input {
    display: none;
}

.plan-box {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 15px;
    cursor: pointer;
    background-color: var(--bg-dark);
    position: relative;
    height: 100%;
}

.plan-card input:checked + .plan-box {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary);
}

.badge-recommended {
    position: absolute;
    top: -10px;
    right: 10px;
    background-color: var(--primary);
    color: #000;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
}

.plan-price {
    font-size: 1.4rem;
    font-weight: 700;
    display: block;
    margin: 8px 0;
}

.plan-price span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.plan-box ul {
    list-style: none;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.plan-box ul li {
    margin-bottom: 5px;
}

.margin-top-10 { margin-top: 10px; }
.margin-top-15 { margin-top: 15px; }
.margin-top-20 { margin-top: 20px; }
.btn-group-row { display: flex; gap: 10px; }

/* ==========================================
   7. FOOTER
   ========================================== */
footer {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 25px 0;
    margin-top: 60px;
    text-align: center;
}

.footer-content {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.tech-tag {
    font-size: 0.75rem;
    margin-top: 5px;
}

/* RESPONSIVO */
@media (max-width: 768px) {
    .role-selection-grid, .plans-grid, .form-row-2 {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 1.8rem;
    }
}