/* ============================================
   RANGEL BOOTS - Login Premium Minimalista
   Estética POS de Gama Alta
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Paleta de Colores Premium */
    --leather-brown: #8B6914;
    --leather-dark: #5C4013;
    --coffee-dark: #3E2723;
    --coffee-medium: #5D4037;
    --coffee-light: #795548;
    --white-pure: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Gradientes Premium */
    --gradient-leather: linear-gradient(135deg, var(--leather-brown) 0%, var(--coffee-dark) 100%);
    --gradient-coffee: linear-gradient(135deg, var(--coffee-light) 0%, var(--coffee-dark) 100%);
    
    /* Sombras Glassmorphism */
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.06);
    
    /* Transiciones */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fluid: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ============================================
   Reset y Base
   ============================================ */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--white-pure);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* ============================================
   Fondo con Patrón de Marcas de Agua Animadas
   ============================================ */

.watermark-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.watermark {
    position: absolute;
    opacity: 0.03;
    font-size: 24px;
    color: var(--gray-400);
    animation: floatWatermark 20s ease-in-out infinite;
}

.watermark.hat {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.watermark.boot {
    top: 20%;
    right: 8%;
    animation-delay: 3s;
}

.watermark.horseshoe {
    bottom: 15%;
    left: 10%;
    animation-delay: 6s;
}

.watermark.star {
    top: 60%;
    right: 5%;
    animation-delay: 9s;
}

.watermark.hat-2 {
    bottom: 30%;
    right: 15%;
    animation-delay: 12s;
}

.watermark.boot-2 {
    top: 40%;
    left: 3%;
    animation-delay: 15s;
}

.watermark.horseshoe-2 {
    top: 75%;
    left: 20%;
    animation-delay: 18s;
}

@keyframes floatWatermark {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(5deg);
    }
    50% {
        transform: translateY(-10px) rotate(-3deg);
    }
    75% {
        transform: translateY(-30px) rotate(2deg);
    }
}

/* ============================================
   Contenedor Principal
   ============================================ */

.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 440px;
    padding: 24px;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Card de Login con Glassmorphism
   ============================================ */

.login-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 
        var(--shadow-card),
        0 0 0 1px rgba(255, 255, 255, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
}

/* Efecto de brillo sutil en el card */
.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: cardShine 8s ease-in-out infinite;
}

@keyframes cardShine {
    0%, 100% {
        left: -100%;
    }
    50% {
        left: 100%;
    }
}

/* ============================================
   Header del Login
   ============================================ */

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.brand-logo {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: var(--gradient-leather);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 8px 24px rgba(139, 105, 20, 0.25),
        0 0 0 1px rgba(139, 105, 20, 0.1);
    animation: logoFloat 4s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.brand-logo i {
    font-size: 32px;
    color: var(--white-pure);
}

.brand-name {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.brand-tagline {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-500);
    letter-spacing: 0.5px;
}

/* ============================================
   Formulario
   ============================================ */

.login-form {
    position: relative;
    z-index: 1;
}

/* ============================================
   Campos de Entrada
   ============================================ */

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 16px;
    color: var(--gray-400);
    font-size: 18px;
    transition: var(--transition-smooth);
    pointer-events: none;
}

.form-control {
    width: 100%;
    padding: 16px 16px 16px 48px;
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-800);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    transition: var(--transition-smooth);
    outline: none;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.form-control::placeholder {
    color: var(--gray-400);
    font-weight: 400;
}

.form-control:focus {
    background: var(--white-pure);
    border-color: var(--leather-brown);
    box-shadow: 
        0 0 0 4px rgba(139, 105, 20, 0.08),
        0 4px 12px rgba(0, 0, 0, 0.04);
}

.form-control:focus + .input-icon {
    color: var(--leather-brown);
    transform: scale(1.1);
}

.form-control.error {
    border-color: #EF4444;
    background: #FEF2F2;
}

.form-control.error:focus {
    box-shadow: 
        0 0 0 4px rgba(239, 68, 68, 0.08),
        0 4px 12px rgba(239, 68, 68, 0.04);
}

.form-control.error + .input-icon {
    color: #EF4444;
}

/* ============================================
   Mensaje de Error
   ============================================ */

.error-message {
    display: none;
    margin-top: 8px;
    padding: 12px 16px;
    background: #FEF2F2;
    border: 1px solid #FECACA;
    border-radius: 8px;
    color: #991B1B;
    font-size: 14px;
    font-weight: 500;
    align-items: center;
    gap: 8px;
    animation: slideDown 0.3s ease-out;
}

.error-message.show {
    display: flex;
}

@keyframes slideDown {
    0% {
        opacity: 0;
        transform: translateY(-10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.error-message i {
    font-size: 16px;
    color: #DC2626;
}

/* ============================================
   Botón de Login
   ============================================ */

.btn-login {
    width: 100%;
    padding: 16px 24px;
    font-size: 15px;
    font-weight: 600;
    color: var(--white-pure);
    background: var(--gradient-leather);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    letter-spacing: 0.3px;
    box-shadow: 
        0 4px 12px rgba(139, 105, 20, 0.25),
        0 0 0 1px rgba(139, 105, 20, 0.1);
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transform: translateX(-100%);
    transition: var(--transition-smooth);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 8px 20px rgba(139, 105, 20, 0.3),
        0 0 0 1px rgba(139, 105, 20, 0.15);
}

.btn-login:hover::before {
    transform: translateX(100%);
}

.btn-login:active {
    transform: translateY(0);
}

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-login-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-login-content i {
    font-size: 16px;
}

/* ============================================
   Spinner Moderno
   ============================================ */

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white-pure);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   Enlace de Olvidó Contraseña
   ============================================ */

.forgot-password {
    display: block;
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-500);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.forgot-password:hover {
    color: var(--leather-brown);
}

/* ============================================
   Footer
   ============================================ */

.login-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.footer-text {
    font-size: 13px;
    font-weight: 400;
    color: var(--gray-400);
    letter-spacing: 0.3px;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 480px) {
    .login-container {
        padding: 16px;
    }
    
    .login-card {
        padding: 36px 24px;
        border-radius: 16px;
    }
    
    .brand-logo {
        width: 64px;
        height: 64px;
    }
    
    .brand-logo i {
        font-size: 28px;
    }
    
    .brand-name {
        font-size: 24px;
    }
    
    .brand-tagline {
        font-size: 13px;
    }
    
    .form-control {
        padding: 14px 14px 14px 44px;
        font-size: 14px;
    }
    
    .input-icon {
        left: 14px;
        font-size: 16px;
    }
    
    .btn-login {
        padding: 14px 20px;
        font-size: 14px;
    }
}

@media (max-width: 360px) {
    .login-card {
        padding: 32px 20px;
    }
    
    .brand-name {
        font-size: 20px;
    }
}

/* ============================================
   Animaciones Adicionales
   ============================================ */

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}