@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

html,
body {
    height: 100%;
    margin: 0;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f766e 0%, #0d9488 50%, #14b8a6 100%);
    min-height: 100vh;
    display: block;
    padding: 20px 15px;
    position: relative;
    background-attachment: fixed;
}

/* Background shapes */
body::before {
    content: '';
    position: fixed;
    top: -200px;
    right: -100px;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    bottom: -150px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
}

.register-container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    width: 100%;
    max-width: 650px;
    padding: 30px;
    position: relative;
    z-index: 1;
    margin: 0 auto;
}

/* Progress Indicator */
.progress-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    position: relative;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex: 1;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #e2e8f0;
    color: #94a3b8;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.3s;
}

.progress-step.active .step-number {
    background: linear-gradient(135deg, #0f766e 0%, #14b8a6 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(15, 118, 110, 0.3);
}

.progress-step.completed .step-number {
    background: #10b981;
    color: white;
}

.step-label {
    font-size: 12px;
    font-weight: 600;
    color: #94a3b8;
    text-align: center;
    transition: all 0.3s;
}

.progress-step.active .step-label {
    color: #0f766e;
}

.progress-line {
    height: 2px;
    background: #e2e8f0;
    flex: 1;
    margin: 0 -10px;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}

.register-header {
    text-align: center;
    margin-bottom: 20px;
}

.register-header h1 {
    color: #1e293b;
    font-size: 26px;
    margin-bottom: 8px;
    font-weight: 700;
}

.register-header p {
    color: #64748b;
    font-size: 14px;
    font-weight: 500;
}

/* Form Steps */
.form-step {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.form-step.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    color: #1e293b;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 13px;
}

.form-group label .optional {
    color: #94a3b8;
    font-weight: normal;
    font-style: italic;
    font-size: 12px;
}

.required {
    color: #dc2626;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.3s;
    font-family: 'Inter', sans-serif;
}

.form-group textarea {
    resize: vertical;
    min-height: 50px;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #14b8a6;
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

.form-group input.error,
.form-group textarea.error,
.form-group select.error {
    border-color: #ef4444;
}

.error-message {
    color: #ef4444;
    font-size: 12px;
    margin-top: 4px;
    display: none;
    font-weight: 500;
}

.error-message.show {
    display: block;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Password Requirements */
.password-requirements {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 12px;
    margin-top: 8px;
}

.password-requirements p {
    color: #dc2626;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
}

.password-requirements ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.password-requirements li {
    color: #dc2626;
    font-size: 12px;
    padding: 3px 0;
    position: relative;
    padding-left: 20px;
}

.password-requirements li::before {
    content: "✗";
    position: absolute;
    left: 0;
    font-weight: bold;
}

.password-requirements li.valid {
    color: #10b981;
}

.password-requirements li.valid::before {
    content: "✓";
}

/* Password Match Indicator */
.password-match-indicator {
    display: flex;
    gap: 4px;
    margin-top: 8px;
    height: 6px;
}

.match-bar {
    flex: 1;
    background: #e2e8f0;
    border-radius: 3px;
    transition: all 0.3s;
}

.match-bar.red {
    background: #ef4444;
}

.match-bar.yellow {
    background: #f59e0b;
}

.match-bar.green {
    background: #10b981;
}

.match-message {
    font-size: 12px;
    margin-top: 6px;
    font-weight: 600;
}

.match-message.red {
    color: #ef4444;
}

.match-message.yellow {
    color: #f59e0b;
}

.match-message.green {
    color: #10b981;
}

/* Navigation Buttons */
.form-navigation {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.btn {
    padding: 14px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Inter', sans-serif;
    flex: 1;
}

.btn-primary {
    background: linear-gradient(135deg, #0f766e 0%, #14b8a6 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(15, 118, 110, 0.35);
}

.btn-secondary {
    background: #e2e8f0;
    color: #475569;
}

.btn-secondary:hover {
    background: #cbd5e1;
}

.login-link {
    text-align: center;
    margin-top: 20px;
    color: #64748b;
    font-size: 14px;
    font-weight: 500;
}

.login-link a {
    color: #0f766e;
    text-decoration: none;
    font-weight: 700;
}

.login-link a:hover {
    color: #14b8a6;
    text-decoration: underline;
}

.password-wrapper {
    position: relative;
}

.password-wrapper input {
    padding-right: 40px;
}

.toggle-password {
    position: absolute;
    right: 3px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: #64748b;
    font-size: 16px;
    padding: 8px;
    display: flex;
    align-items: center;
    transition: color 0.3s;
}

.toggle-password:hover {
    color: #0f766e;
}

/* Username Validation */
.username-wrapper {
    position: relative;
}

.username-wrapper input {
    padding-right: 40px;
}

.username-status {
    display: none; /* Hidden to keep UI clean */
}

.username-status.loading::after {
    content: "⏳";
    animation: spin 1s linear infinite;
}

.username-status.available::after {
    content: "✅";
}

.username-status.taken::after {
    content: "❌";
}

@keyframes spin {
    from {
        transform: translateY(-50%) rotate(0deg);
    }

    to {
        transform: translateY(-50%) rotate(360deg);
    }
}


.username-feedback {
    font-size: 12px;
    margin-top: 6px;
    font-weight: 600;
}

.username-feedback.success {
    color: #10b981;
}

.username-feedback.error {
    color: #ef4444;
}

@media (max-width: 600px) {
    body {
        display: block;
        height: auto;
        min-height: 100vh;
        padding: 15px 10px;
    }

    .register-container {
        padding: 20px 16px;
        margin: 0 auto;
        max-width: 100%;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .register-header h1 {
        font-size: 22px;
    }

    .register-header p {
        font-size: 13px;
    }

    .step-label {
        font-size: 9px;
    }

    .step-number {
        width: 32px;
        height: 32px;
        font-size: 13px;
    }

    .progress-container {
        margin-bottom: 20px;
    }

    .form-group label {
        font-size: 12px;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 14px;
        padding: 12px 14px;
    }

    .password-requirements {
        padding: 10px;
    }

    .password-requirements p {
        font-size: 12px;
    }

    .password-requirements li {
        font-size: 11px;
    }

    .btn {
        padding: 12px;
        font-size: 14px;
    }

    .form-navigation {
        flex-direction: column;
        gap: 10px;
    }

    .form-navigation .btn {
        width: 100%;
    }

    .username-feedback,
    .match-message {
        font-size: 11px;
    }
}