/* ================================================================
   LOGIN PAGE - ESTILOS MODERNOS Y RESPONSIVE
   ================================================================ */

/* ==================== VARIABLES Y RESET ==================== */

:root {
    /* Typography */
    --font-ui: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Design Palette */
    --color-dark-gray: #545454;
    --color-almost-black: #1a1a1b;
    --color-dark-red: #ba2000;
    --color-off-white: #f5f5f5;
    --color-gold: #c5a059;
    --color-very-dark-gray: #2b2b2b;
    --color-maroon: #4d0a0a;
    --color-slate-blue: #5f7a82;
    --color-silver: #c0c0c0;
    --color-beige: #d9c5b2;

    /* Functional Colors Mapped to Brand */
    --color-primary: #ba2000;
    --color-primary-light: #a83535;
    --color-primary-dark: #4d0a0a;
    --color-secondary: var(--color-slate-blue);
    --color-text: #1a1a1b;
    --color-text-light: #545454;
    --color-bg: #ffffff;
    --color-bg-light: #ffffff;
    --color-white: #ffffff;
    --color-border: var(--color-silver);
    --color-success: #2e7d32;
    --color-success-dark: #1b5e20;
    --color-error: var(--color-primary);
    --color-info: var(--color-slate-blue);
    
    --shadow-sm: 0 2px 8px rgba(26, 26, 27, 0.05);
    --shadow-md: 0 4px 16px rgba(26, 26, 27, 0.08);
    --shadow-lg: 0 8px 24px rgba(26, 26, 27, 0.12);
    --shadow-hover: 0 12px 32px rgba(26, 26, 27, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 16px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Canonical spacing scale */
    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
}

/* ==================== BODY Y ESTRUCTURA ==================== */

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

html {
    scroll-behavior: smooth;
    height: 100%;
    background: #ffffff;
}

/* Animated Background - SVG */
.animated-bg {
    position: fixed;
    /* Expandimos el contenedor para que los bordes rectos queden fuera de la pantalla */
    top: -5%;
    left: -5%;
    width: 110%;
    height: 125%;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.animated-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center; /* Centra la imagen para distribuir el excedente */
    opacity: 0;
    animation: bgFadeIn 1.2s 0.2s ease-out forwards;
}

@keyframes bgFadeIn {
    from { opacity: 0; transform: scale(1.05); }
    to   { opacity: 1; transform: scale(1); }
}

body {
    font-family: var(--font-ui);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: transparent;
}

/* Background Decoration (Hidden for minimalist look) */
.bg-decoration {
    display: none;
}

/* ==================== AUTH CONTAINER ==================== */

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    position: relative;
    z-index: 1;
}

.auth-box {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

/* ==================== REMOVED BRAND SECTION ==================== */

/* ==================== LOGIN CARD ==================== */

.login-card {
    width: 100%;
    max-width: 380px;
    background: rgba(255, 255, 255, 0.92);
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    overflow: hidden;
    animation: slideInUp 0.5s ease-out;
}

.card-header {
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg) var(--spacing-xl);
    text-align: center;
    background: rgba(255, 255, 255, 0.6);
    border-bottom: 3px solid var(--color-primary);
}

.logo-container {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    border-radius: 50%;
}

.brand-logo {
    width: 80px;
    height: auto;
}

.card-header h2 {
    font-size: 1.5rem;
    color: var(--color-text);
    margin: 0;
    font-weight: 600;
    letter-spacing: -0.5px;
}

/* ==================== LOGIN FORM ==================== */

.login-form {
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg) var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: none;
    border-bottom: 2px solid var(--color-border);
    border-radius: 0;
    font-family: inherit;
    font-size: 1rem;
    color: var(--color-text);
    transition: var(--transition);
    background: transparent;
}

.form-input::placeholder {
    color: var(--color-text-light);
    font-weight: 500;
}

.form-input:focus {
    outline: none;
    border-bottom-color: var(--color-primary);
    background: rgba(186, 32, 0, 0.02);
}

.form-focus {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 0;
    background: var(--color-primary);
    transition: width 0.3s ease;
    pointer-events: none;
}

.form-input:focus + .form-focus {
    width: 100%;
}

/* ==================== BUTTONS ==================== */

.btn-login,
.btn-register {
    width: 100%;
    padding: 12px var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.btn-login {
    background: linear-gradient(135deg, #ba2000 0%, #4d0a0a 100%);
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 6px 20px rgba(186, 32, 0, 0.35);
    font-weight: 700;
}

.btn-login:hover {
    background: linear-gradient(135deg, #a83535 0%, #4d0a0a 100%);
    box-shadow: 0 8px 28px rgba(186, 32, 0, 0.45);
    transform: translateY(-3px);
}

.btn-login:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(186, 32, 0, 0.35);
}

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-register {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    margin-top: var(--spacing-md);
}

.btn-register:hover {
    background: rgba(186, 32, 0, 0.08);
    border-color: var(--color-primary-dark);
}

.btn-register:active {
    transform: translateY(1px);
}

/* ==================== ERROR MESSAGE ==================== */

.error-msg {
    background: rgba(186, 32, 0, 0.08);
    border-left: 4px solid var(--color-primary);
    color: var(--color-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.9rem;
    display: none;
    animation: slideDown 0.3s ease-out;
    margin-bottom: var(--spacing-md);
}

/* ==================== DIVIDER ==================== */

.divider {
    text-align: center;
    margin: var(--spacing-lg) 0 var(--spacing-md) 0;
    color: var(--color-text-light);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}

/* ==================== CARD FOOTER ==================== */

.card-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: rgba(245, 245, 245, 0.7);
    border-top: 1px solid rgba(192, 192, 192, 0.5);
    text-align: center;
}

.card-footer p {
    color: var(--color-text-light);
    font-size: 0.8rem;
    margin: 0;
    line-height: 1.4;
}

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

.card-footer a:hover {
    text-decoration: underline;
    color: var(--color-primary-dark);
}

/* ==================== ANIMATIONS ==================== */

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==================== RESPONSIVE DESIGN ==================== */

/* Tablet & Mobile */
@media (max-width: 1024px) {
    .auth-container {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 767px) {
    :root {
        --spacing-lg: 16px;
        --spacing-xl: 20px;
    }

    .auth-box {
        width: 100%;
        padding: var(--spacing-sm);
    }

    .login-card {
        max-width: 100%;
    }

    .card-header {
        padding: var(--spacing-lg);
    }

    .card-header h2 {
        font-size: 1.5rem;
    }

    .login-form {
        padding: var(--spacing-lg);
    }

    .form-input {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 16px; /* Para evitar zoom en iOS */
    }

    .btn-login,
    .btn-register {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 0.9rem;
    }

    .card-footer {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .card-footer p {
        font-size: 0.85rem;
    }
}

/* Small Mobile (< 480px) */
@media (max-width: 479px) {
    :root {
        --spacing-md: 12px;
        --spacing-lg: 12px;
        --spacing-xl: 16px;
        --border-radius: 8px;
    }

    body {
        min-height: 100vh;
    }

    .auth-right {
        padding: var(--spacing-md);
        min-height: 100vh;
    }

    .login-card {
        max-width: 100%;
        border-radius: 8px;
    }

    .card-header {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .card-header h2 {
        font-size: 1.3rem;
    }

    .card-header p {
        font-size: 0.9rem;
    }

    .login-form {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .form-group {
        margin-bottom: var(--spacing-md);
    }

    .form-group label {
        font-size: 0.9rem;
    }

    .form-input {
        padding: var(--spacing-md) var(--spacing-md);
        font-size: 16px;
    }

    .btn-login,
    .btn-register {
        padding: var(--spacing-md) var(--spacing-md);
        font-size: 0.85rem;
        gap: var(--spacing-xs);
    }

    .error-msg {
        padding: var(--spacing-md);
        font-size: 0.85rem;
        margin-bottom: var(--spacing-md);
    }

    .divider {
        margin: var(--spacing-md) 0;
        font-size: 0.85rem;
    }

    .divider span {
        padding: 0 var(--spacing-sm);
    }

    .card-footer {
        padding: var(--spacing-md);
    }

    .card-footer p {
        font-size: 0.8rem;
    }
}

/* ==================== PRINT STYLES ==================== */

@media print {
    .bg-decoration {
        display: none;
    }

    body {
        background: var(--color-white);
    }

    .auth-container {
        min-height: auto;
    }

    .login-card {
        box-shadow: none;
        border: 1px solid var(--color-border);
    }
}

/* ==================== ACCESSIBILITY ==================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states para navegación por teclado */
.form-input:focus-visible,
.btn-login:focus-visible,
.btn-register:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: more) {
    .form-input {
        border-width: 3px;
    }

    .btn-login,
    .btn-register {
        font-weight: 700;
        border-width: 2px;
    }
}

/* Light theme only - Dark mode removed */