/* signin.css - Updated Modern Styling */

:root {
    --primary-color: #7c3aed;
    --primary-hover: #6d28d9;
    --primary-light: #a78bfa;
    --background: #0f0f0f;
    --surface: #1a1a1a;
    --surface-elevated: #242424;
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --border-color: #333333;
    --success-color: #10b981;
    --error-color: #ef4444;
    --input-bg: #1e1e1e;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-page {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.form-container {
    background: var(--surface);
    border-radius: 24px;
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px 0;
    letter-spacing: -0.5px;
}

.form-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 400;
}

.modern-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.2px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 16px;
    color: var(--text-secondary);
    pointer-events: none;
    z-index: 1;
}

.form-input {
    width: 100%;
    padding: 14px 16px 14px 48px;
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
    outline: none;
}

.form-input::placeholder {
    color: var(--text-secondary);
}

.form-input:focus {
    border-color: var(--primary-color);
    background: var(--surface-elevated);
}

.toggle-password {
    position: absolute;
    right: 16px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.toggle-password:hover {
    color: var(--text-primary);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: -8px;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

.checkbox-wrapper input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.forgot-password {
    font-size: 14px;
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.forgot-password:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.submit-button {
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
}

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

.button-icon {
    transition: transform 0.3s ease;
}

.submit-button:hover .button-icon {
    transform: translateX(4px);
}

.form-footer {
    margin-top: 32px;
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.signup-prompt {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

.signup-link {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

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

.welcome-message {
    display: none;
    text-align: center;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
    background: var(--surface);
    padding: 48px;
    border-radius: 24px;
    border: 1px solid var(--border-color);
}

.welcome-message.visible {
    display: block;
    opacity: 1;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--success-color), #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.5s ease-out;
}

.success-icon svg {
    color: white;
}

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

.welcome-message h2 {
    font-size: 28px;
    color: var(--text-primary);
    margin: 0 0 12px 0;
}

.welcome-message p {
    font-size: 16px;
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 640px) {
    .form-container {
        padding: 32px 24px;
    }

    .form-title {
        font-size: 28px;
    }

    .form-subtitle {
        font-size: 14px;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

/* Loading State */
.submit-button.loading {
    pointer-events: none;
    opacity: 0.7;
}

.submit-button.loading .button-text::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}