/*
  IntelliExpense marketing-site design tokens.
  Palette anchored on the "IntelliExpense Prototype" Figma Make file's soft-green
  brand direction (spec FR-016) — see specs/005-marketing-site-design/data-model.md.
*/
:root {
    /* Color */
    --ie-color-green-primary: #2d7a3a;
    --ie-color-green-hover: #256b31;
    --ie-color-green-soft: #eef6ef;
    --ie-color-green-border: #d3e8d5;
    --ie-color-forest-900: #16321c;
    --ie-color-forest-800: #1f4527;
    --ie-color-forest-700: #2a5a34;
    --ie-color-forest-600: #2d7a3a;
    --ie-color-forest-500: #3f8d4b;
    --ie-color-forest-400: #79ab80;
    --ie-color-forest-300: #a9c9ad;
    --ie-color-forest-200: #cfe3d1;
    --ie-color-forest-100: #e6f0e7;
    --ie-color-forest-50: #f3f9f3;
    --ie-color-neutral-bg: #f7faf7;
    --ie-color-neutral-text: #1f2d22;
    --ie-color-white: #ffffff;
    --ie-color-discord: #5865F2;
    --ie-color-discord-hover: #4752C4;
    --ie-color-danger: #b3261e;

    /* Radius */
    --ie-radius-sm: 8px;
    --ie-radius-md: 14px;
    --ie-radius-lg: 22px;

    /* Spacing */
    --ie-space-1: 4px;
    --ie-space-2: 8px;
    --ie-space-3: 12px;
    --ie-space-4: 16px;
    --ie-space-5: 24px;
    --ie-space-6: 32px;
    --ie-space-7: 48px;
    --ie-space-8: 64px;

    /* Type */
    --ie-font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --ie-font-size-body: 16px;
    --ie-font-size-small: 14px;
    --ie-font-size-h1: 44px;
    --ie-font-size-h2: 32px;
    --ie-font-size-h3: 20px;
}

.ie-section {
    padding: var(--ie-space-8) var(--ie-space-4);
}

.ie-container {
    max-width: 1120px;
    margin: 0 auto;
}

/* Responsive grid utilities — required so the 1440px desktop layouts (FR-013) reflow to a
   single column at the 375px mobile breakpoint instead of squeezing/overflowing horizontally
   (SC-003). Plain inline `display:grid` styles can't be media-queried, hence these classes. */
.ie-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--ie-space-7);
    align-items: center;
}

.ie-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--ie-space-6);
}

.ie-settings-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--ie-space-6);
    align-items: start;
}

@media (max-width: 700px) {
    .ie-grid-2, .ie-grid-3, .ie-settings-grid {
        grid-template-columns: 1fr;
    }
}

.ie-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--ie-space-2);
    background: var(--ie-color-forest-50);
    border: 1px solid var(--ie-color-forest-200);
    color: var(--ie-color-forest-700);
    font-size: 12px;
    font-weight: 600;
    padding: var(--ie-space-1) var(--ie-space-3);
    border-radius: 999px;
    margin-bottom: var(--ie-space-5);
}

body.ie-marketing {
    font-family: var(--ie-font-base);
    color: var(--ie-color-neutral-text);
    background: var(--ie-color-neutral-bg);
    font-size: var(--ie-font-size-body);
    line-height: 1.6;
}

.ie-marketing h1, .ie-marketing h2, .ie-marketing h3 {
    font-weight: 700;
    color: var(--ie-color-forest-900);
    letter-spacing: -0.01em;
}

.ie-marketing h1 { font-size: var(--ie-font-size-h1); line-height: 1.1; }
.ie-marketing h2 { font-size: var(--ie-font-size-h2); line-height: 1.15; }
.ie-marketing h3 { font-size: var(--ie-font-size-h3); }

/* Nav */
.ie-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(247, 250, 247, 0.92);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--ie-color-forest-100);
}

.ie-nav-inner {
    max-width: 1120px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--ie-space-3) var(--ie-space-4);
    gap: var(--ie-space-4);
    flex-wrap: wrap;
}

.ie-nav-logo {
    display: flex;
    align-items: center;
    gap: var(--ie-space-2);
    font-weight: 700;
    font-size: 20px;
    color: var(--ie-color-forest-900);
    text-decoration: none;
}

.ie-nav-links {
    display: flex;
    align-items: center;
    gap: var(--ie-space-5);
    flex-wrap: wrap;
}

.ie-nav-links a {
    color: var(--ie-color-forest-700);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.ie-nav-links a:hover {
    color: var(--ie-color-forest-900);
}

.ie-nav-actions {
    display: flex;
    align-items: center;
    gap: var(--ie-space-2);
    flex-wrap: wrap;
}

/* Buttons */
.ie-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--ie-space-2);
    font-weight: 600;
    border-radius: var(--ie-radius-md);
    padding: var(--ie-space-3) var(--ie-space-5);
    font-size: 15px;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.ie-btn-primary {
    background: var(--ie-color-forest-600);
    color: var(--ie-color-white);
}

.ie-btn-primary:hover {
    background: var(--ie-color-green-hover);
    color: var(--ie-color-white);
}

.ie-btn-secondary {
    background: var(--ie-color-white);
    color: var(--ie-color-forest-700);
    border-color: var(--ie-color-forest-200);
}

.ie-btn-secondary:hover {
    background: var(--ie-color-forest-50);
}

.ie-btn-oauth {
    background: var(--ie-color-white);
    color: #3c4043;
    border-color: #dadce0;
    font-size: 14px;
    padding: var(--ie-space-2) var(--ie-space-4);
}

.ie-btn-oauth:hover {
    background: #f8f9fa;
}

.ie-btn-oauth-discord {
    background: var(--ie-color-discord);
    color: var(--ie-color-white);
    border-color: var(--ie-color-discord);
}

.ie-btn-oauth-discord:hover {
    background: var(--ie-color-discord-hover);
}

.ie-btn-oauth-nav {
    padding: var(--ie-space-2) var(--ie-space-3);
    font-size: 13px;
}

.ie-btn-oauth-full {
    width: 100%;
    padding: var(--ie-space-3) var(--ie-space-4);
}

.ie-btn-danger {
    background: var(--ie-color-white);
    color: var(--ie-color-danger);
    border-color: var(--ie-color-danger);
}

/* Feature cards */
.ie-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--ie-space-5);
}

@media (max-width: 900px) {
    .ie-feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
    .ie-feature-grid { grid-template-columns: 1fr; }
}

.ie-feature-card {
    background: var(--ie-color-white);
    border: 1px solid var(--ie-color-forest-100);
    border-radius: var(--ie-radius-lg);
    padding: var(--ie-space-5);
}

.ie-feature-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--ie-radius-sm);
    background: var(--ie-color-forest-50);
    border: 1px solid var(--ie-color-forest-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ie-color-forest-600);
    margin-bottom: var(--ie-space-4);
}

.ie-feature-card-badge {
    float: right;
    font-size: 11px;
    font-weight: 600;
    color: var(--ie-color-forest-600);
    background: var(--ie-color-forest-50);
    border: 1px solid var(--ie-color-forest-100);
    padding: 2px 10px;
    border-radius: 999px;
}

/* Step items */
.ie-step-item {
    display: flex;
    gap: var(--ie-space-5);
    align-items: flex-start;
    margin-bottom: var(--ie-space-5);
}

.ie-step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--ie-radius-md);
    background: var(--ie-color-forest-600);
    color: var(--ie-color-white);
    font-weight: 700;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ie-step-body {
    background: var(--ie-color-white);
    border: 1px solid var(--ie-color-forest-100);
    border-radius: var(--ie-radius-md);
    padding: var(--ie-space-4);
    flex: 1;
}

/* Toggle switch */
.ie-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ie-space-4);
    padding: var(--ie-space-4);
    background: var(--ie-color-forest-50);
    border-radius: var(--ie-radius-md);
    border: 1px solid var(--ie-color-forest-100);
    margin-bottom: var(--ie-space-3);
}

.ie-toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    background: var(--ie-color-forest-200);
}

.ie-toggle-switch.ie-toggle-on {
    background: var(--ie-color-forest-500);
}

.ie-toggle-switch::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--ie-color-white);
    transition: transform 0.15s ease;
}

.ie-toggle-switch.ie-toggle-on::before {
    transform: translateX(20px);
}

/* Checkbox styled to look like a toggle switch, but still a real form checkbox — used where the
   control must submit alongside sibling fields in a larger form (e.g. autocategorize), rather
   than as its own single-purpose auto-submitting action. */
.ie-toggle-checkbox {
    appearance: none;
    -webkit-appearance: none;
    position: relative;
    width: 44px;
    height: 24px;
    border: none;
    border-radius: 999px;
    background: var(--ie-color-forest-200);
    cursor: pointer;
    vertical-align: middle;
}

.ie-toggle-checkbox::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--ie-color-white);
    transition: transform 0.15s ease;
}

.ie-toggle-checkbox:checked {
    background: var(--ie-color-forest-500);
}

.ie-toggle-checkbox:checked::before {
    transform: translateX(20px);
}

/* Dashboard mockup (self-built hero visual, FR-003a) */
.ie-dashboard-mockup {
    background: var(--ie-color-white);
    border-radius: var(--ie-radius-lg);
    box-shadow: 0 20px 40px rgba(22, 50, 28, 0.12);
    border: 1px solid var(--ie-color-forest-100);
    overflow: hidden;
    max-width: 420px;
}

.ie-dashboard-mockup-header {
    background: var(--ie-color-forest-900);
    color: var(--ie-color-white);
    padding: var(--ie-space-4) var(--ie-space-5);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ie-dashboard-mockup-section {
    padding: var(--ie-space-4) var(--ie-space-5);
    border-bottom: 1px solid var(--ie-color-forest-50);
}

.ie-dashboard-mockup-label {
    font-size: 10px;
    font-weight: 700;
    color: var(--ie-color-forest-600);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--ie-space-3);
}

.ie-dashboard-bar-track {
    height: 6px;
    background: var(--ie-color-forest-50);
    border-radius: 999px;
    overflow: hidden;
    margin-top: 4px;
}

.ie-dashboard-bar-fill {
    height: 100%;
    background: var(--ie-color-forest-600);
    border-radius: 999px;
}

.ie-dashboard-mockup-callout {
    background: var(--ie-color-forest-50);
    border: 1px solid var(--ie-color-forest-100);
    border-radius: var(--ie-radius-sm);
    padding: var(--ie-space-3);
    margin: var(--ie-space-4) var(--ie-space-5);
}

/* Cards used in privacy / stats / instance sections */
.ie-card {
    background: var(--ie-color-white);
    border: 1px solid var(--ie-color-forest-100);
    border-radius: var(--ie-radius-lg);
    padding: var(--ie-space-5);
}

.ie-card-row {
    display: flex;
    justify-content: space-between;
    padding: var(--ie-space-2) 0;
}

/* Footer */
.ie-footer {
    background: var(--ie-color-forest-900);
    color: var(--ie-color-forest-300);
    padding: var(--ie-space-7) var(--ie-space-4);
}

.ie-footer-inner {
    max-width: 1120px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--ie-space-6);
}

@media (max-width: 700px) {
    .ie-footer-inner { grid-template-columns: 1fr; }
}

.ie-footer h4 {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ie-color-forest-400);
    margin-bottom: var(--ie-space-3);
}

.ie-footer a {
    color: var(--ie-color-forest-300);
    text-decoration: none;
    display: block;
    margin-bottom: var(--ie-space-2);
    font-size: 14px;
}

.ie-footer a:hover {
    color: var(--ie-color-white);
}

.ie-footer-bottom {
    max-width: 1120px;
    margin: var(--ie-space-6) auto 0;
    padding-top: var(--ie-space-4);
    border-top: 1px solid var(--ie-color-forest-800);
    font-size: 12px;
    color: var(--ie-color-forest-300);
}

/* Auth screen */
.ie-auth-page {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--ie-space-6) var(--ie-space-4);
}

.ie-auth-card {
    background: var(--ie-color-white);
    border: 1px solid var(--ie-color-forest-100);
    border-radius: var(--ie-radius-lg);
    box-shadow: 0 20px 40px rgba(22, 50, 28, 0.1);
    padding: var(--ie-space-6);
    max-width: 420px;
    width: 100%;
    text-align: center;
}

.ie-auth-trust-line {
    display: flex;
    align-items: center;
    gap: var(--ie-space-2);
    font-size: 12px;
    color: var(--ie-color-forest-600);
    margin-top: var(--ie-space-2);
    text-align: left;
}