:root {
    --primary: #00a896;
    --primary-dark: #028090;
    --primary-light: #02c39a;
    --secondary: #05668d;
    --accent: #f0f3bd;
    --text: #2b2d42;
    --text-light: #f7f7f7;
    --bg: #f7f9fc;
    --card-bg: #ffffff;
    --gray: #8d99ae;
    --light-gray: #edf2f4;
    --success: #4caf50;
    --warning: #ff9800;
    --error: #f44336;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Poppins", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
    background-image: radial-gradient(circle at 10% 20%, rgba(0, 168, 150, 0.05) 0%, rgba(255, 255, 255, 0) 50%);
}

/* Fondo animado de rutas */
.route-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.15;
}

.route-path {
    position: absolute;
    width: 100%;
    height: 100%;
}

.route-path svg {
    width: 100%;
    height: 100%;
}

.route-path path {
    stroke: var(--primary);
    stroke-width: 1.5;
    fill: none;
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: dash 20s linear infinite;
}

.route-node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    filter: drop-shadow(0 0 4px rgba(0, 168, 150, 0.5));
}

/* Animaciones */
@keyframes dash {
    to {
        stroke-dashoffset: 0;
    }
}

@keyframes nodePulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.8;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 0.4;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

.register-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.6s ease-out forwards;
}

.register-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.register-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.register-header h1 {
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.register-header p {
    color: var(--gray);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-dark);
}

.form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 168, 150, 0.1);
}

.form-control::placeholder {
    color: var(--gray);
    opacity: 0.6;
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: block;
    animation: fadeIn 0.3s ease-out;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
    font-size: 1rem;
    width: 100%;
}

.btn-primary {
    background: var(--primary);
    color: var(--text-light);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.login-link {
    margin-top: 2rem;
    text-align: center;
    font-size: 0.9375rem;
    color: var(--gray);
}

.login-link a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

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

.password-strength {
    margin-top: 0.5rem;
    height: 4px;
    background: var(--light-gray);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.password-strength::after {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0%;
    background: var(--error);
    transition: width 0.3s ease;
}

.password-strength.weak::after {
    width: 30%;
    background: var(--error);
}

.password-strength.medium::after {
    width: 60%;
    background: var(--warning);
}

.password-strength.strong::after {
    width: 100%;
    background: var(--success);
}

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

@media (max-width: 576px) {
    .register-container {
        padding: 2rem 1.5rem;
    }

    body {
        padding: 1rem;
    }
}