/**
 * Main Styles - Estilos globales y layout
 */

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

:root {
    --primary: #2563eb;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1f2937;
    --light: #f9fafb;
    --border: #e5e7eb;
    --text: #374151;
}

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--light);
    color: var(--text);
    line-height: 1.6;
}

/* ==================== NAVBAR ==================== */
.navbar {
    background: linear-gradient(135deg, var(--primary), var(--dark));
    color: white;
    padding: 1rem 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.navbar-brand h1 {
    font-size: 1.5rem;
    margin: 0;
}

.navbar-menu {
    display: flex;
    gap: 1rem;
}

.nav-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid transparent;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: white;
}

.nav-btn.active {
    background: white;
    color: var(--primary);
    border-color: white;
}

.nav-btn.icon-btn {
    padding: 0.75rem;
    font-size: 1.2rem;
}

.navbar-actions {
    display: flex;
    gap: 1rem;
}

/* ==================== HAMBURGER MENU ==================== */
.hamburger-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 0.4rem;
}

.hamburger-btn span {
    width: 25px;
    height: 3px;
    background: white;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ==================== MAIN CONTENT ==================== */
#appContent {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    min-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
}

/* ==================== LOGIN MODAL ==================== */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.login-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    width: 100%;
}

.login-header {
    background: linear-gradient(135deg, var(--primary), var(--dark));
    color: white;
    padding: 2.5rem 2rem;
    text-align: center;
}

.login-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    font-size: 0.875rem;
    opacity: 0.9;
}

.login-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark);
    font-size: 0.875rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.login-error {
    background-color: #fee;
    color: var(--danger);
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    margin-top: 1rem;
    border-left: 4px solid var(--danger);
}

.login-footer {
    padding: 0 2rem 2rem;
    text-align: center;
    font-size: 0.875rem;
}

.login-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.login-footer a:hover {
    text-decoration: underline;
}

/* ==================== BUTTONS ==================== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background-color: var(--secondary);
    color: white;
}

.btn-secondary:hover {
    background-color: #475569;
}

.btn-icon {
    padding: 0.5rem 0.75rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ==================== BADGE ==================== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--primary);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .navbar {
        padding: 0.75rem 1rem;
    }

    .navbar-content {
        gap: 0.5rem;
    }

    .navbar-brand h1 {
        font-size: 1.2rem;
        margin: 0;
    }

    .hamburger-btn {
        display: flex;
    }

    .navbar-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, var(--primary), var(--dark));
        flex-direction: column;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .navbar-menu.active {
        max-height: 300px;
    }

    .navbar-menu .nav-btn {
        width: 100%;
        justify-content: flex-start;
        border-radius: 0;
        padding: 1rem 2rem;
        font-size: 0.9rem;
    }

    #appContent {
        padding: 1rem;
    }

    .nav-btn {
        font-size: 0.8rem;
        padding: 0.5rem 0.75rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0.75rem 0.5rem;
    }

    .navbar-brand h1 {
        font-size: 1rem;
    }

    .navbar-actions {
        gap: 0.5rem;
    }

    .hamburger-btn {
        padding: 0.35rem;
    }

    .hamburger-btn span {
        width: 20px;
    }

    .navbar-menu.active {
        max-height: 350px;
    }
}