@tailwind base;
@tailwind components;
@tailwind utilities;

:root {
    --primary-color: #00bcd4;
    --secondary-color: #0097a7;
    --accent-color: #26c6da;
    --light-accent: #4dd0e1;
    --dark-color: #ffffff;
    --darker-color: #f8f9fa;
    --light-color: #212529;
    --background-color: #f0f8ff;
    --text-color: #495057;
    --border-radius: 20px;
    --box-shadow: 0 25px 50px rgba(0, 188, 212, 0.15);
    --transition-speed: 0.4s;
    --cyan-glow: 0 0 30px rgba(0, 188, 212, 0.3);
}

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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 25%, #80deea 50%, #4dd0e1 75%, #26c6da 100%);
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    position: relative;
    overflow-x: hidden;
    padding: 1rem;
}

body::before {
    content: "";
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 188, 212, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(38, 198, 218, 0.08) 0%, transparent 50%);
    z-index: 0;
    pointer-events: none;
    animation: backgroundPulse 10s ease-in-out infinite alternate;
}

@keyframes backgroundPulse {
    0% { opacity: 0.6; }
    100% { opacity: 1; }
}

.container {
    max-width: 500px;
    width: 100%;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.form-wrapper {
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: 
        var(--box-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.8),
        0 0 0 1px rgba(0, 188, 212, 0.2);
    position: relative;
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    border: 2px solid rgba(0, 188, 212, 0.2);
    overflow: hidden;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    backdrop-filter: blur(20px);
}

.form-wrapper::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), var(--accent-color), transparent);
    animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.form-wrapper:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 
        0 35px 70px rgba(0, 188, 212, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        0 0 0 2px rgba(0, 188, 212, 0.3),
        var(--cyan-glow);
}

.logo {
    max-width: 100%;
    width: 100%;
    height: auto;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
    margin: 0 auto 2.5rem auto;
    filter: drop-shadow(0 0 20px rgba(0, 188, 212, 0.2));
}

.logo:hover {
    transform: scale(1.08) rotate(1deg);
    filter: drop-shadow(0 0 30px rgba(0, 188, 212, 0.4));
}

.input-group {
    position: relative;
    margin-bottom: 2rem;
}

.input-group-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    width: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border-radius: 12px 0 0 12px;
    box-shadow: 0 0 15px rgba(0, 188, 212, 0.3);
}

.form-control {
    border: 2px solid rgba(0, 188, 212, 0.3);
    border-radius: 12px;
    padding: 20px 22px;
    font-size: 16px;
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    color: var(--light-color);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    min-height: 60px;
    box-shadow: 
        inset 0 2px 4px rgba(0, 188, 212, 0.05),
        0 2px 8px rgba(0, 188, 212, 0.1);
}

.form-control:focus {
    box-shadow: 
        0 0 0 4px rgba(0, 188, 212, 0.2),
        inset 0 2px 4px rgba(0, 188, 212, 0.1),
        0 4px 20px rgba(0, 188, 212, 0.15);
    border-color: var(--primary-color);
    background: linear-gradient(145deg, #ffffff, #ffffff);
    outline: none;
    transform: translateY(-3px);
}

.form-control::placeholder {
    color: #6c757d;
    font-size: 15px;
    font-weight: 400;
}

.form-control:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 
        inset 0 2px 4px rgba(0, 188, 212, 0.08),
        0 4px 12px rgba(0, 188, 212, 0.15);
}

.btn-submit {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 22px 40px;
    border-radius: 50px;
    border: none;
    width: 100%;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 1.5px;
    box-shadow: 
        0 10px 30px rgba(0, 188, 212, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    cursor: pointer;
    min-height: 68px;
    touch-action: manipulation;
    position: relative;
    overflow: hidden;
}

.btn-submit::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.btn-submit:hover::before {
    left: 100%;
}

.btn-submit:hover {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    transform: translateY(-5px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0, 188, 212, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        var(--cyan-glow);
}

.btn-submit:active {
    transform: translateY(-3px) scale(1.01);
}

.important-notice {
    margin-top: 2.5rem;
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-color);
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    padding: 22px;
    border-radius: var(--border-radius);
    animation: fadeIn 1s ease-in-out;
    border: 2px solid rgba(0, 188, 212, 0.2);
    box-shadow: 
        inset 0 1px 0 rgba(255, 255, 255, 0.8),
        0 6px 20px rgba(0, 188, 212, 0.1);
}

.important-notice p {
    margin-bottom: 0.5rem;
}

.important-notice strong {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 188, 212, 0.3);
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    border-radius: var(--border-radius);
    z-index: 100;
    backdrop-filter: blur(15px);
}

.loading-spinner {
    width: 75px;
    height: 75px;
    border: 6px solid rgba(0, 188, 212, 0.2);
    border-top: 6px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite, pulse 2s ease-in-out infinite alternate;
    margin-bottom: 2rem;
    box-shadow: 0 0 30px rgba(0, 188, 212, 0.4);
}

.loading-text {
    color: var(--light-color);
    font-size: 1.3rem;
    font-weight: 600;
    text-align: center;
    animation: fadeIn 1s ease-in-out;
    text-shadow: 0 0 10px rgba(0, 188, 212, 0.3);
}

.invalid-feedback {
    color: #dc3545;
    font-size: 0.85rem;
    margin-top: 8px;
    display: none;
    text-shadow: 0 0 5px rgba(220, 53, 69, 0.3);
}

.form-group {
    opacity: 0;
    transform: translateY(20px);
    animation: slideIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    margin-bottom: 2rem;
}

.form-group:nth-child(1) { animation-delay: 0.1s; }
.form-group:nth-child(2) { animation-delay: 0.2s; }
.form-group:nth-child(3) { animation-delay: 0.3s; }
.form-group:nth-child(4) { animation-delay: 0.4s; }
.form-group:nth-child(5) { animation-delay: 0.5s; }
.form-group:nth-child(6) { animation-delay: 0.6s; }

/* Estilo de SELECT */
select.form-control {
    color: var(--light-color);
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    border: 2px solid rgba(0, 188, 212, 0.3);
    border-radius: 12px;
    padding: 20px 22px;
    font-size: 16px;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2300bcd4' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 18px center;
    background-repeat: no-repeat;
    background-size: 20px;
    padding-right: 50px;
    box-shadow: 
        inset 0 2px 4px rgba(0, 188, 212, 0.05),
        0 2px 8px rgba(0, 188, 212, 0.1);
}

select.form-control:focus {
    box-shadow: 
        0 0 0 4px rgba(0, 188, 212, 0.2),
        inset 0 2px 4px rgba(0, 188, 212, 0.1),
        0 4px 20px rgba(0, 188, 212, 0.15);
    border-color: var(--primary-color);
    background: linear-gradient(145deg, #ffffff, #ffffff);
    color: var(--light-color);
    outline: none;
    transform: translateY(-3px);
}

select.form-control option {
    color: var(--light-color);
    background-color: #ffffff;
    padding: 12px;
    border: none;
}

/* Estados de validación */
.form-control.is-valid {
    border-color: #28a745;
    box-shadow: 
        0 0 0 4px rgba(40, 167, 69, 0.2),
        inset 0 2px 4px rgba(40, 167, 69, 0.1);
}

.form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 
        0 0 0 4px rgba(220, 53, 69, 0.2),
        inset 0 2px 4px rgba(220, 53, 69, 0.1);
}

/* Animaciones */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 188, 212, 0.4); }
    70% { box-shadow: 0 0 0 20px rgba(0, 188, 212, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 188, 212, 0); }
}

@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* MEJORAS RESPONSIVE PARA MÓVILES */

/* Tablets y pantallas medianas */
@media (max-width: 768px) {
    .container {
        padding: 15px;
        max-width: 100%;
    }

    .form-wrapper {
        padding: 2.5rem;
        margin: 0;
    }

    .form-control {
        padding: 18px 20px;
        font-size: 16px;
        min-height: 56px;
    }

    .btn-submit {
        padding: 20px 35px;
        font-size: 17px;
        min-height: 64px;
    }

    .logo {
        margin: 0 auto 2rem auto;
        max-width: 90%;
    }
}

/* Móviles grandes */
@media (max-width: 576px) {
    body {
        padding: 0.5rem;
        align-items: flex-start;
        padding-top: 2rem;
    }

    .container {
        padding: 8px;
        max-width: 100%;
        width: 100%;
    }

    .form-wrapper {
        padding: 2rem 1.75rem;
        border-radius: 16px;
        margin: 0;
        min-height: auto;
    }

    .logo {
        margin: 0 auto 1.5rem auto;
        max-width: 85%;
    }

    .form-control {
        padding: 20px 22px;
        font-size: 16px;
        min-height: 60px;
        border-radius: 12px;
    }

    .btn-submit {
        padding: 22px 30px;
        font-size: 17px;
        min-height: 64px;
        border-radius: 35px;
        letter-spacing: 1px;
    }

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

    .important-notice {
        padding: 20px 18px;
        font-size: 0.9rem;
        margin-top: 2rem;
    }

    select.form-control {
        padding: 20px 50px 20px 22px;
        background-position: right 20px center;
        background-size: 22px;
    }
}

/* Móviles pequeños */
@media (max-width: 400px) {
    body {
        padding: 0.25rem;
        padding-top: 1.5rem;
    }

    .container {
        padding: 4px;
    }

    .form-wrapper {
        padding: 1.75rem 1.5rem;
        border-radius: 14px;
    }

    .form-control {
        padding: 22px 20px;
        font-size: 16px;
        min-height: 62px;
        border-radius: 10px;
    }

    .btn-submit {
        padding: 24px 22px;
        font-size: 16px;
        min-height: 66px;
        border-radius: 30px;
    }

    .logo {
        max-width: 80%;
        margin: 0 auto 1.25rem auto;
    }

    .important-notice {
        padding: 22px 16px;
        font-size: 0.85rem;
    }

    .form-group {
        margin-bottom: 1.25rem;
    }
}

/* Optimizaciones táctiles para móviles */
@media (hover: none) and (pointer: coarse) {
    .form-control {
        min-height: 60px;
        padding: 20px 22px;
    }

    .btn-submit {
        min-height: 64px;
        padding: 22px 30px;
    }

    select.form-control {
        min-height: 60px;
        padding: 20px 50px 20px 22px;
    }

    .form-wrapper:hover {
        transform: none;
        box-shadow: 
            var(--box-shadow),
            inset 0 1px 0 rgba(255, 255, 255, 0.8),
            0 0 0 1px rgba(0, 188, 212, 0.2);
    }

    .logo:hover {
        transform: none;
        filter: drop-shadow(0 0 20px rgba(0, 188, 212, 0.2));
    }

    .btn-submit:hover {
        transform: none;
        background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        box-shadow: 
            0 10px 30px rgba(0, 188, 212, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }
}

/* Landscape en móviles */
@media (max-width: 768px) and (orientation: landscape) {
    body {
        padding-top: 1rem;
        align-items: center;
    }

    .form-wrapper {
        padding: 1.75rem;
    }

    .logo {
        margin: 0 auto 1.25rem auto;
        max-width: 70%;
    }

    .form-group {
        margin-bottom: 1.25rem;
    }
}

/* Efectos adicionales para pantallas grandes */
@media (min-width: 1024px) {
    .form-wrapper {
        backdrop-filter: blur(25px);
    }
    
    .form-wrapper::after {
        content: "";
        position: absolute;
        top: -3px;
        left: -3px;
        right: -3px;
        bottom: -3px;
        background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--accent-color));
        border-radius: var(--border-radius);
        z-index: -1;
        opacity: 0;
        transition: opacity var(--transition-speed);
    }
    
    .form-wrapper:hover::after {
        opacity: 0.1;
    }
}