:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.3);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header Styles */
.glass-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hero Section */
.hero {
    padding: 4rem 0 2rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 0.5rem;
}

.last-updated {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* TOC Styles */
.toc {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
}

.toc h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.toc ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.5rem;
}

.toc a {
    text-decoration: none;
    color: var(--primary-color);
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

/* Main Content Box */
.content-box {
    background: white;
    padding: 2.5rem;
    border-radius: 1.5rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 3rem;
}

section {
    margin-bottom: 3rem;
}

section:last-child {
    margin-bottom: 0;
}

h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
}

p {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

ul {
    margin-bottom: 1rem;
    margin-left: 1.5rem;
    color: var(--text-muted);
}

li {
    margin-bottom: 0.5rem;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
}

.info-card {
    background: #f1f5f9;
    padding: 1.25rem;
    border-radius: 0.75rem;
    border: 1px solid #e2e8f0;
}

.info-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.info-card p {
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* Callout */
.callout {
    background: #eef2ff;
    border-left: 4px solid var(--primary-color);
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    margin-top: 1.5rem;
}

.callout p {
    margin-bottom: 0;
    color: var(--text-main);
    font-size: 0.95rem;
}

.contact-list {
    list-style: none;
    margin-left: 0;
}

.contact-list a {
    color: var(--primary-color);
    text-decoration: none;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid #e2e8f0;
}

footer p {
    font-size: 0.875rem;
}

/* Mobile First Adjustments */
@media (max-width: 640px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .content-box {
        padding: 1.5rem;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .hero {
        padding: 3rem 0 1.5rem;
    }

    .toc ul {
        grid-template-columns: 1fr;
    }
}

/* --- Account Deletion Page Custom Styles --- */

.back-link {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--primary-hover);
}

.layout-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2rem;
    align-items: start;
    margin-bottom: 3rem;
}

@media (max-width: 768px) {
    .layout-grid {
        grid-template-columns: 1fr;
    }
}

.data-delete-list {
    margin-left: 1.25rem;
    margin-top: 1rem;
}

.data-delete-list li {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.data-delete-list strong {
    color: var(--text-main);
}

.form-container {
    position: sticky;
    top: 6rem;
}

.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn 0.4s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.input-group {
    margin-bottom: 1.25rem;
}

.input-group label {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.input-group input[type="text"],
.input-group input[type="tel"],
.input-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-main);
    background: #f8fafc;
    transition: all 0.2s;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.phone-input-wrapper {
    display: flex;
    align-items: center;
    border: 1px solid #cbd5e1;
    border-radius: 0.5rem;
    background: #f8fafc;
    overflow: hidden;
    transition: all 0.2s;
}

.phone-input-wrapper:focus-within {
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.phone-prefix {
    padding: 0.75rem 1rem;
    background: #e2e8f0;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.95rem;
    border-right: 1px solid #cbd5e1;
}

.phone-input-wrapper input {
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 0.75rem 1rem;
    flex-grow: 1;
}

.input-helper {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 0.25rem;
    width: 1rem;
    height: 1rem;
    accent-color: var(--primary-color);
}

.checkbox-group label {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.checkbox-group strong {
    color: var(--text-main);
}

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-family: inherit;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-text {
    background: transparent;
    color: var(--text-muted);
}

.btn-text:hover {
    color: var(--text-main);
}

.otp-banner {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.otp-banner p {
    font-size: 0.85rem;
    color: #1e40af;
    margin-bottom: 0;
}

.otp-icon {
    font-size: 1.25rem;
}

.mock-otp-helper {
    margin-top: 0.75rem;
    padding: 0.5rem;
    background: #fffbeb;
    border: 1px dashed #fcd34d;
    border-radius: 0.375rem;
    text-align: center;
    font-size: 0.8rem;
    color: #b45309;
}

.text-center {
    text-align: center;
}

/* Success Checkmark Animation */
.success-checkmark {
    width: 80px;
    height: 80px;
    margin: 0 auto;
}

.success-checkmark .check-icon {
    width: 80px;
    height: 80px;
    position: relative;
    border-radius: 50%;
    box-sizing: content-box;
    border: 4px solid #4ebd93;
}

.success-checkmark .check-icon::before {
    top: 3px;
    left: -2px;
    width: 30px;
    transform-origin: 100% 50%;
    border-radius: 100px 0 0 100px;
}

.success-checkmark .check-icon::after {
    top: 0;
    left: 30px;
    width: 60px;
    transform-origin: 0 50%;
    border-radius: 0 100px 100px 0;
    animation: rotateCircle 4.25s ease-in;
}

.success-checkmark .check-icon .icon-circle {
    top: -4px;
    left: -4px;
    position: absolute;
    box-sizing: content-box;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 4px solid rgba(78, 189, 147, 0.2);
    z-index: 1;
}

.success-checkmark .check-icon .icon-fix {
    top: 8px;
    left: 28px;
    width: 5px;
    height: 54px;
    position: absolute;
    z-index: 1;
    transform: rotate(-45deg);
}

.success-checkmark .check-icon .icon-line {
    height: 5px;
    background-color: #4ebd93;
    display: block;
    border-radius: 2px;
    position: absolute;
    z-index: 10;
}

.success-checkmark .check-icon .icon-line.line-tip {
    top: 46px;
    left: 14px;
    width: 25px;
    transform: rotate(45deg);
    animation: icon-line-tip 0.75s;
}

.success-checkmark .check-icon .icon-line.line-long {
    top: 38px;
    right: 8px;
    width: 47px;
    transform: rotate(-45deg);
    animation: icon-line-long 0.75s;
}

@keyframes icon-line-tip {
    0% {
        width: 0;
        left: 1px;
        top: 19px;
    }
    54% {
        width: 0;
        left: 1px;
        top: 19px;
    }
    70% {
        width: 50px;
        left: -8px;
        top: 37px;
    }
    84% {
        width: 17px;
        left: 21px;
        top: 48px;
    }
    100% {
        width: 25px;
        left: 14px;
        top: 46px;
    }
}

@keyframes icon-line-long {
    0% {
        width: 0;
        right: 46px;
        top: 54px;
    }
    65% {
        width: 0;
        right: 46px;
        top: 54px;
    }
    84% {
        width: 55px;
        right: 0px;
        top: 35px;
    }
    100% {
        width: 47px;
        right: 8px;
        top: 38px;
    }
}