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

:root {
    --primary: #1C3154;           /* Azul oscuro principal */
    --primary-light: #1D4D9B;     /* Azul medio */
    --accent: #FF9406;            /* Naranja */
    --accent-secondary: #01C0B9;  /* Turquesa/Cyan */
    --gold: #B39E54;              /* Dorado */
    --pink: #C43359;              /* Rosa/Fucsia */
    --purple: #62348C;            /* Púrpura */
    --white: #ffffff;
    --light-bg: #f8f9fa;
    --text-dark: #1C3154;
    --text-light: #6c757d;
    --border: #e0e0e0;
    --success: #01C0B9;
    --error: #C43359;
}

body {
    font-family: 'Montserrat', sans-serif;
    min-height: 100vh;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    margin: 0;
    position: relative;
    overflow: hidden;
}

/* Imagen de fondo que cubre todo el viewport */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* CAMBIAR ESTA URL POR TU IMAGEN */
    background: url('background.jpg') center/cover no-repeat fixed;
    z-index: -2;
}

/* Overlay oscuro sobre la imagen */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /*background: linear-gradient(135deg, 
        rgba(28, 49, 84, 0.75) 0%, 
        rgba(29, 77, 155, 0.85) 100%);*/
    z-index: -1;
}

.form-container {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
    max-width: 650px;
    width: 100%;
    max-height: 95vh;
    overflow-y: auto;
    animation: fadeInUp 0.8s ease;
    
    /* Estilos para el scrollbar */
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--light-bg);
}

/* Webkit scrollbar (Chrome, Safari, Edge) */
.form-container::-webkit-scrollbar {
    width: 8px;
}

.form-container::-webkit-scrollbar-track {
    background: var(--light-bg);
    border-radius: 10px;
}

.form-container::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 10px;
}

.form-container::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

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

.form-header {
    text-align: center;
    margin-bottom: 25px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.form-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.form-subtitle {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.4;
}

.badge {
    display: inline-block;
    background: var(--accent);
    color: var(--primary-dark);
    padding: 5px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--primary);
    font-size: 0.9rem;
}

.required {
    color: var(--error);
    font-weight: 700;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: 'Montserrat', sans-serif;
    transition: all 0.3s ease;
    background: var(--light-bg);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%231C3154' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

select.form-control option {
    padding: 10px;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(28, 49, 84, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.file-upload-area {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 25px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--light-bg);
    margin-bottom: 15px;
}

.file-upload-area:hover {
    border-color: var(--primary);
    background: var(--white);
}

.file-upload-area.dragover {
    border-color: var(--accent);
    background: rgba(253, 183, 20, 0.1);
    transform: scale(1.01);
}

.file-input {
    display: none;
}

.upload-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
    opacity: 0.7;
}

.upload-text {
    font-weight: 600;
    color: var(--primary);
    font-size: 0.95rem;
    margin-bottom: 5px;
}

.upload-hint {
    color: var(--text-light);
    font-size: 0.8rem;
}

.file-list {
    margin-top: 12px;
}

.file-item {
    background: var(--light-bg);
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

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

.file-details {
    flex: 1;
}

.file-name {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.file-size {
    color: var(--text-light);
    font-size: 0.8rem;
}

.btn-remove {
    background: var(--error);
    color: var(--white);
    border: none;
    padding: 6px 14px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-remove:hover {
    background: #c82333;
    transform: scale(1.05);
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 20px;
    box-shadow: 0 6px 20px rgba(28, 49, 84, 0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(28, 49, 84, 0.4);
    background: linear-gradient(135deg, var(--primary-light), var(--accent-secondary));
}

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

.btn-submit:disabled {
    background: linear-gradient(135deg, #adb5bd, #6c757d);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.error-message {
    color: var(--error);
    font-size: 0.8rem;
    margin-top: 5px;
    font-weight: 500;
    display: none;
}

.error-message.show {
    display: block;
    animation: shake 0.4s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.success-message {
    background: linear-gradient(135deg, var(--accent-secondary), #00a89f);
    color: var(--white);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    margin-top: 20px;
    display: none;
    box-shadow: 0 8px 25px rgba(1, 192, 185, 0.3);
}

.success-message.show {
    display: block;
    animation: fadeInScale 0.5s ease;
}

.error-alert {
    background: linear-gradient(135deg, var(--error), #9c1851);
    color: var(--white);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 20px;
    display: none;
    box-shadow: 0 8px 25px rgba(196, 51, 89, 0.3);
}

.error-alert.show {
    display: block;
    animation: fadeInScale 0.5s ease;
}

.error-alert h3,
.success-message h3 {
    font-size: 1.3rem;
    margin-bottom: 6px;
}

.error-alert p,
.success-message p {
    font-size: 0.95rem;
    opacity: 0.95;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.footer-text {
    text-align: center;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 2px solid var(--border);
    color: var(--text-light);
    font-size: 0.8rem;
    line-height: 1.4;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .form-container {
        padding: 25px 20px;
        max-height: 96vh;
    }

    .form-title {
        font-size: 1.4rem;
    }

    .logo {
        font-size: 1.3rem;
    }

    .upload-icon {
        font-size: 2rem;
    }

    .file-upload-area {
        padding: 20px 15px;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .form-container {
        padding: 20px 15px;
        border-radius: 15px;
        max-height: 97vh;
    }

    .form-title {
        font-size: 1.3rem;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .badge {
        font-size: 0.7rem;
        padding: 4px 12px;
    }
    
    .form-control {
        padding: 10px 14px;
        font-size: 0.9rem;
    }
    
    textarea.form-control {
        min-height: 70px;
    }
    
    .file-upload-area {
        padding: 18px 12px;
    }
    
    .upload-icon {
        font-size: 1.8rem;
    }
    
    .upload-text {
        font-size: 0.85rem;
    }
    
    .upload-hint {
        font-size: 0.75rem;
    }
    
    .btn-submit {
        padding: 12px;
        font-size: 0.9rem;
    }
    
    .footer-text {
        font-size: 0.75rem;
    }
}

/* Landscape orientation for mobile */
@media (max-height: 600px) and (orientation: landscape) {
    .form-container {
        max-height: 98vh;
        padding: 15px 30px;
    }
    
    .form-header {
        margin-bottom: 15px;
    }
    
    .logo {
        font-size: 1.2rem;
        margin-bottom: 5px;
    }
    
    .badge {
        margin-bottom: 8px;
        padding: 4px 12px;
    }
    
    .form-title {
        font-size: 1.3rem;
        margin-bottom: 5px;
    }
    
    .form-subtitle {
        font-size: 0.85rem;
    }
    
    .form-group {
        margin-bottom: 12px;
    }
    
    .footer-text {
        margin-top: 12px;
        padding-top: 10px;
    }
}