/* ── Variables de color (paleta Algorithmics) ── */
:root {
    --navy: #3B1A6B;
    --navy-dark: #2A1250;
    --navy-light: #5B21B6;
    --turq: #E8C547;
    --turq-dark: #C9A832;
    --white: #FFFFFF;
    --gray-light: #F0EBF8;
    --gray-mid: #DDD1F0;
    --gray: #94A3B8;
    --text: #2C3E50;
    --text-light: #64748B;
    --success: #22C55E;
    --error: #EF4444;
    --warning: #F59E0B;

    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(59, 26, 107, 0.10);
    --shadow-lg: 0 8px 40px rgba(59, 26, 107, 0.18);
    --transition: all 0.22s cubic-bezier(.4, 0, .2, 1);
}

/* ── Reset ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--gray-light);
    color: var(--text);
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    outline: none;
}

input {
    font-family: inherit;
    outline: none;
    border: none;
}

/* ── App loader ── */
.app-loader {
    position: fixed;
    inset: 0;
    background: var(--navy);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loader-content {
    text-align: center;
    color: var(--white);
}

.loader-ball {
    font-size: 3rem;
    animation: bounce 0.8s infinite alternate;
    display: block;
    margin-bottom: 1rem;
}

@keyframes bounce {
    from {
        transform: translateY(0);
    }

    to {
        transform: translateY(-18px);
    }
}

.loader-content p {
    font-size: 1rem;
    color: var(--turq);
    font-weight: 500;
    letter-spacing: 0.05em;
}

/* ── Navbar ── */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--navy);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
    height: 64px;
}

.navbar.hidden {
    display: none;
}

.navbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
}

.brand-icon {
    font-size: 1.5rem;
}

.brand-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.01em;
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--gray);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--white);
    background: var(--navy-light);
}

.nav-link.active {
    color: var(--turq);
    background: rgba(53, 198, 244, 0.12);
}

.nav-link i {
    font-size: 0.85rem;
}

/* ── App container ── */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: calc(100vh - 64px);
}

/* ── Page loader ── */
.page-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 50vh;
}

.spinner {
    width: 44px;
    height: 44px;
    border: 4px solid var(--gray-mid);
    border-top-color: var(--turq);
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
}

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

/* ── Toast ── */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.25rem;
    border-radius: var(--radius-sm);
    background: var(--white);
    box-shadow: var(--shadow-lg);
    font-size: 0.9rem;
    font-weight: 500;
    min-width: 280px;
    max-width: 380px;
    transform: translateX(120%);
    transition: transform 0.3s cubic-bezier(.4, 0, .2, 1);
    border-left: 4px solid var(--gray);
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    border-left-color: var(--success);
}

.toast-success i {
    color: var(--success);
}

.toast-error {
    border-left-color: var(--error);
}

.toast-error i {
    color: var(--error);
}

.toast-info {
    border-left-color: var(--turq);
}

.toast-info i {
    color: var(--turq);
}

.toast-warning {
    border-left-color: var(--warning);
}

.toast-warning i {
    color: var(--warning);
}

/* ── Skeleton ── */
.skeleton-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.skeleton-line {
    height: 14px;
    border-radius: 6px;
    background: linear-gradient(90deg, var(--gray-mid) 25%, #f0f4f8 50%, var(--gray-mid) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.4s infinite;
    margin-bottom: 0.75rem;
}

.skeleton-line.wide {
    width: 100%;
}

.skeleton-line.medium {
    width: 65%;
}

.skeleton-line.narrow {
    width: 40%;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .app-container {
        padding: 1rem;
    }

    .navbar-inner {
        padding: 0 1rem;
    }

    .brand-name {
        display: none;
    }

    .nav-link span {
        display: none;
    }
}