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Viewing: registro.php

<?php
/**
 * ProgressGym - Registro de Usuario
 */
require_once 'config/database.php';


// Si ya tiene sesión, redirigir
if (!empty($_SESSION['user_id'])) {
    header('Location: perfil.php');
    exit;
}

$error = '';
$success = '';

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $username = trim($_POST['username'] ?? '');
    $password = $_POST['password'] ?? '';
    $confirm  = $_POST['confirm'] ?? '';

    if (empty($username) || empty($password) || empty($confirm)) {
        $error = 'Todos los campos son requeridos.';
    } elseif (strlen($username) < 3 || strlen($username) > 50) {
        $error = 'El usuario debe tener entre 3 y 50 caracteres.';
    } elseif (strlen($password) < 4) {
        $error = 'La contraseña debe tener al menos 4 caracteres.';
    } elseif ($password !== $confirm) {
        $error = 'Las contraseñas no coinciden.';
    } else {
        $db = getDB();

        // Verificar si el usuario ya existe
        $stmt = $db->prepare("SELECT id FROM usuarios WHERE username = :username LIMIT 1");
        $stmt->execute([':username' => $username]);
        if ($stmt->fetch()) {
            $error = 'Ese nombre de usuario ya está registrado.';
        } else {
            $hash = password_hash($password, PASSWORD_DEFAULT);
            $stmt = $db->prepare("INSERT INTO usuarios (username, password, nombre_visible, avatar) VALUES (:username, :password, :nombre, 'default')");
            $stmt->execute([':username' => $username, ':password' => $hash, ':nombre' => $username]);

            $success = '¡Cuenta creada con éxito! Ahora puedes iniciar sesión.';
        }
    }
}
?>
<!DOCTYPE html>
<html lang="es">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="ProgressBros - Crear Cuenta">
    <title>Registro — ProgressBros</title>
    <link rel="icon" type="image/png" href="ProgressBros.png">
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;600;700&display=swap" rel="stylesheet">
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css">
    <link rel="stylesheet" href="assets/css/style.css">
    <style>
        * {
            font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif !important;
        }

        body {
            background: #0a0a0a;
            overflow-x: hidden;
        }

        .auth-wrapper {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2rem 1rem;
            position: relative;
            overflow: hidden;
        }

        /* Animated Grid Background */
        .auth-wrapper::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(rgba(0, 230, 118, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 230, 118, 0.03) 1px, transparent 1px);
            background-size: 50px 50px;
            animation: gridMove 20s linear infinite;
            z-index: 0;
        }

        @keyframes gridMove {
            0% { transform: translate(0, 0); }
            100% { transform: translate(50px, 50px); }
        }

        /* Floating Orbs */
        .auth-wrapper::after {
            content: '';
            position: absolute;
            top: 10%;
            right: 10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            animation: floatOrb 8s ease-in-out infinite;
            z-index: 0;
        }

        @keyframes floatOrb {
            0%, 100% { transform: translate(0, 0) scale(1); }
            50% { transform: translate(30px, -30px) scale(1.1); }
        }

        /* Neo-Brutalist Card */
        .auth-card {
            width: 100%;
            max-width: 380px;
            background: #0f0f0f;
            border: 3px solid #00e676;
            border-radius: 0 !important;
            padding: 1.5rem 1.75rem;
            box-shadow: 6px 6px 0 rgba(0, 230, 118, 0.3);
            position: relative;
            z-index: 1;
            animation: slideInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
            transition: all 0.3s ease;
        }

        .auth-card:hover {
            transform: translate(-3px, -3px);
            box-shadow: 9px 9px 0 rgba(0, 230, 118, 0.4);
        }

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

        /* Logo */
        .auth-logo {
            font-size: 1.75rem;
            font-weight: 900;
            letter-spacing: -2px;
            text-align: center;
            margin-bottom: 0.15rem;
            text-transform: uppercase;
            position: relative;
        }

        .auth-logo i {
            color: #00e676;
            font-size: 2rem;
            display: block;
            margin-bottom: 0.15rem;
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.1); }
        }

        .auth-logo .text-accent {
            color: #00e676 !important;
        }

        .auth-subtitle {
            text-align: center;
            color: #94a3b8;
            font-size: 0.7rem;
            margin-bottom: 1.25rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            font-weight: 700;
            font-family: 'JetBrains Mono', monospace !important;
        }

        /* Error Alert */
        .auth-error {
            background: rgba(239, 68, 68, 0.08);
            border: 2px solid #ef4444;
            border-radius: 0 !important;
            color: #fca5a5;
            padding: 0.65rem 0.875rem;
            font-size: 0.8rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            box-shadow: 3px 3px 0 rgba(239, 68, 68, 0.2);
        }

        .auth-error i {
            font-size: 1rem;
        }

        /* Success Alert */
        .auth-success {
            background: rgba(0, 230, 118, 0.08);
            border: 2px solid #00e676;
            border-radius: 0 !important;
            color: #a7f3d0;
            padding: 0.65rem 0.875rem;
            font-size: 0.8rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            box-shadow: 3px 3px 0 rgba(0, 230, 118, 0.2);
        }

        .auth-success i {
            font-size: 1rem;
            color: #00e676;
        }

        /* Form Labels */
        .form-label {
            color: #00e676 !important;
            font-weight: 700 !important;
            font-size: 0.7rem !important;
            text-transform: uppercase !important;
            letter-spacing: 1.2px !important;
            margin-bottom: 0.4rem !important;
            font-family: 'JetBrains Mono', monospace !important;
        }

        /* Spacing between form groups */
        .mb-3 {
            margin-bottom: 0.875rem !important;
        }

        .mb-4 {
            margin-bottom: 1rem !important;
        }

        /* Input Groups */
        .input-group {
            border: 2px solid rgba(255, 255, 255, 0.15);
            border-radius: 0 !important;
            overflow: hidden;
            transition: all 0.2s ease;
            box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.3);
        }

        .input-group:focus-within {
            border-color: #00e676;
            box-shadow: 3px 3px 0 rgba(0, 230, 118, 0.3);
            transform: translate(-1px, -1px);
        }

        .input-group-text-dark {
            background: #000000 !important;
            border: none !important;
            color: #00e676 !important;
            border-radius: 0 !important;
            padding: 0.625rem 0.75rem !important;
            font-size: 1rem !important;
        }

        .auth-card .form-control {
            background: #000000 !important;
            border: none !important;
            border-radius: 0 !important;
            color: #ffffff !important;
            font-weight: 600 !important;
            padding: 0.625rem 0.875rem !important;
            font-size: 0.9rem !important;
        }

        .auth-card .form-control::placeholder {
            color: #475569 !important;
            font-weight: 500 !important;
        }

        .auth-card .form-control:focus {
            background: #000000 !important;
            color: #ffffff !important;
            box-shadow: none !important;
            outline: none !important;
        }

        /* Buttons */
        .btn-accent {
            background: linear-gradient(135deg, #00e676 0%, #00c853 100%) !important;
            border: 3px solid #00e676 !important;
            border-radius: 0 !important;
            color: #000000 !important;
            font-weight: 900 !important;
            text-transform: uppercase !important;
            letter-spacing: 1.5px !important;
            padding: 0.75rem 1.25rem !important;
            font-size: 0.85rem !important;
            box-shadow: 3px 3px 0 rgba(0, 230, 118, 0.4) !important;
            transition: all 0.2s ease !important;
            position: relative !important;
            overflow: hidden !important;
        }

        .btn-accent:hover {
            transform: translate(-2px, -2px) !important;
            box-shadow: 5px 5px 0 rgba(0, 230, 118, 0.5) !important;
            color: #000000 !important;
        }

        .btn-accent:active {
            transform: translate(0, 0) !important;
            box-shadow: 2px 2px 0 rgba(0, 230, 118, 0.4) !important;
        }

        /* Footer */
        .auth-footer {
            text-align: center;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 2px solid rgba(255, 255, 255, 0.1);
            font-size: 0.8rem;
            color: #94a3b8;
            font-weight: 600;
        }

        .auth-footer a {
            color: #00e676;
            text-decoration: none;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: all 0.2s ease;
            position: relative;
        }

        .auth-footer a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: #00e676;
            transition: width 0.3s ease;
        }

        .auth-footer a:hover::after {
            width: 100%;
        }

        .auth-footer a:hover {
            color: #00ff88;
        }

        /* Responsive */
        @media (max-width: 576px) {
            .auth-card {
                padding: 1.5rem 1.5rem;
                box-shadow: 6px 6px 0 rgba(0, 230, 118, 0.3);
            }

            .auth-card:hover {
                transform: translate(-2px, -2px);
                box-shadow: 8px 8px 0 rgba(0, 230, 118, 0.4);
            }

            .auth-logo {
                font-size: 1.5rem;
            }

            .auth-logo i {
                font-size: 1.75rem;
            }

            .btn-accent {
                padding: 0.75rem 1.25rem !important;
                font-size: 0.85rem !important;
                letter-spacing: 1.2px !important;
            }
        }
    </style>
</head>
<body>
    <div class="auth-wrapper">
        <div class="auth-card">
            <div class="auth-logo">
                <i class="bi bi-lightning-charge-fill"></i>
                Progress<span class="text-accent">Gym</span>
            </div>
            <p class="auth-subtitle">Crea tu cuenta para empezar</p>

            <?php if ($error): ?>
                <div class="auth-error">
                    <i class="bi bi-exclamation-circle-fill"></i>
                    <?= htmlspecialchars($error) ?>
                </div>
            <?php endif; ?>

            <?php if ($success): ?>
                <div class="auth-success">
                    <i class="bi bi-check-circle-fill"></i>
                    <?= htmlspecialchars($success) ?>
                </div>
            <?php endif; ?>

            <form method="POST" action="registro.php" autocomplete="off">
                <div class="mb-3">
                    <label for="reg-username" class="form-label">Usuario</label>
                    <div class="input-group">
                        <span class="input-group-text input-group-text-dark"><i class="bi bi-person"></i></span>
                        <input type="text" class="form-control" id="reg-username" name="username" 
                               placeholder="Elige un usuario" required autofocus minlength="3" maxlength="50"
                               value="<?= htmlspecialchars($_POST['username'] ?? '') ?>">
                    </div>
                </div>
                <div class="mb-3">
                    <label for="reg-password" class="form-label">Contraseña</label>
                    <div class="input-group">
                        <span class="input-group-text input-group-text-dark"><i class="bi bi-lock"></i></span>
                        <input type="password" class="form-control" id="reg-password" name="password" 
                               placeholder="Mínimo 4 caracteres" required minlength="4">
                    </div>
                </div>
                <div class="mb-4">
                    <label for="reg-confirm" class="form-label">Confirmar Contraseña</label>
                    <div class="input-group">
                        <span class="input-group-text input-group-text-dark"><i class="bi bi-shield-lock"></i></span>
                        <input type="password" class="form-control" id="reg-confirm" name="confirm" 
                               placeholder="Repite tu contraseña" required>
                    </div>
                </div>
                <button type="submit" class="btn btn-accent w-100 py-2" id="btn-registro">
                    <i class="bi bi-person-plus-fill me-2"></i>
                    Crear Cuenta
                </button>
            </form>

            <div class="auth-footer">
                ¿Ya tienes cuenta? <a href="login.php">Inicia sesión</a>
            </div>
        </div>
    </div>
</body>
</html>
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