/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

/* Animated Background Elements */
.bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.floating-shape {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 15%;
    left: 8%;
    animation-delay: 0s;
}

.shape-2 {
    width: 120px;
    height: 120px;
    top: 65%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 60px;
    height: 60px;
    bottom: 15%;
    left: 25%;
    animation-delay: 4s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    top: 5%;
    right: 20%;
    animation-delay: 6s;
}

.shape-5 {
    width: 90px;
    height: 90px;
    bottom: 30%;
    right: 5%;
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 0.8;
    }
}

/* Main Container */
.signup-container {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 10;
    animation: slideInUp 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    max-height: 90vh;
    overflow-y: auto;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(60px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Custom Scrollbar */
.signup-container::-webkit-scrollbar {
    width: 8px;
}

.signup-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.signup-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
}

/* Logo and Header */
.signup-header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    width: 70px;
    height: 70px;
    background: linear-gradient(45deg, #ff6b6b, #ffd93d);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: white;
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.4);
}

.signup-title {
    color: white;
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 8px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.signup-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    font-weight: 400;
}

/* Success Message */
.success-message {
    display: none;
    background: rgba(108, 207, 127, 0.2);
    border: 1px solid rgba(108, 207, 127, 0.3);
    color: white;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
    animation: slideDown 0.5s ease;
}

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

/* Form Styles */
.signup-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-group {
    position: relative;
    flex: 1;
}

.form-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 16px;
    z-index: 2;
}

.form-input {
    width: 100%;
    padding: 14px 18px 14px 45px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: white;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-input:focus {
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

/* Select Dropdown */
.form-select {
    width: 100%;
    padding: 14px 18px 14px 45px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: white;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    cursor: pointer;
}

.form-select option {
    background: #2c3e50;
    color: white;
}

/* Password Strength Indicator */
.password-strength {
    margin-top: 8px;
    display: none;
}

.strength-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 8px;
}

.strength-fill {
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.strength-text {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

.strength-weak .strength-fill { 
    width: 33%; background: #ff6b6b;
}

.strength-medium .strength-fill { 
    width: 66%; background: #ffd93d; 
}

.strength-strong .strength-fill { 
    width: 100%; background: #6bcf7f; 
}

/* Terms and Conditions */
.terms-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin: 10px 0;
}

.terms-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #ff6b6b;
    margin-top: 2px;
}

.terms-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    line-height: 1.4;
}

.terms-text a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

.terms-text a:hover {
    text-decoration: underline;
}

/* Button Styles */
.signup-btn {
    background: linear-gradient(45deg, #ff6b6b, #ee5a52);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.4);
    margin-top: 10px;
}

.signup-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 40px rgba(255, 107, 107, 0.6);
}

.signup-btn:active {
    transform: translateY(-1px) scale(0.98);
}

.signup-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    margin: 25px 0 20px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
}

.divider span {
    padding: 0 20px;
}

/* Social Login */
.social-login {
    display: flex;
    gap: 15px;
}

.social-btn {
    flex: 1;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Login Link */
.login-link {
    text-align: center;
    margin-top: 25px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.login-link a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.login-link a:hover {
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

/* Back to Home */
.back-home {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 20;
}

.back-home a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.back-home a:hover {
    color: white;
    background: rgba(255, 255, 255, 0.2);
}

/* Loading Animation */
.loading {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

.signup-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.signup-btn.loading .loading {
    display: inline-block;
    margin-right: 10px;
}

/* Error Message */
.error-message {
    display: none;
    background: rgba(255, 107, 107, 0.2);
    border: 1px solid rgba(255, 107, 107, 0.3);
    color: white;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
    animation: slideDown 0.5s ease;
}

/* Responsive Design */
@media (max-width: 600px) {
    .signup-container {
        padding: 30px 20px;
        margin: 10px;
        max-height: 95vh;
    }

    .form-row {
        flex-direction: column;
        gap: 18px;
    }

    .social-login {
        flex-direction: column;
    }

    .back-home {
        top: 15px;
        left: 15px;
    }
}