/* ============================================
   daylnk landing page styles
   Single file, no external CSS, no frameworks.
   ============================================ */

:root {
    --green-deep: #2d5f3f;
    --green: #3d7a52;
    --green-light: #e8f1ec;
    --green-soft: #f4f9f6;
    --accent: #d4a574;
    --ink: #1a2e22;
    --ink-soft: #4a5c52;
    --ink-muted: #7a8c82;
    --bg: #fbfdfc;
    --white: #ffffff;
    --border: #d8e3dc;
    --shadow-sm: 0 1px 2px rgba(45, 95, 63, 0.05);
    --shadow: 0 4px 12px rgba(45, 95, 63, 0.08);
    --shadow-lg: 0 12px 32px rgba(45, 95, 63, 0.12);
    --radius: 12px;
    --radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", system-ui, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }

a {
    color: var(--green-deep);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover { color: var(--green); }

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Header
   ============================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(251, 253, 252, 0.92);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    padding-bottom: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 20px;
    color: var(--ink);
    letter-spacing: -0.02em;
}

.logo-mark {
    color: var(--green-deep);
    font-size: 18px;
}

.site-header nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.site-header nav a {
    color: var(--ink-soft);
    font-weight: 500;
    font-size: 15px;
}

.site-header nav a:hover {
    color: var(--green-deep);
}

.nav-cta {
    background: var(--green-deep);
    color: var(--white) !important;
    padding: 9px 18px;
    border-radius: 100px;
    font-weight: 600 !important;
}

.nav-cta:hover {
    background: var(--green);
    color: var(--white) !important;
}

/* ============================================
   Hero + signup form
   ============================================ */

.hero {
    padding: 80px 0 60px;
    background: linear-gradient(180deg, var(--green-soft) 0%, var(--bg) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero h1 {
    font-size: clamp(40px, 5vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.03em;
    font-weight: 800;
    margin-bottom: 20px;
}

.accent {
    color: var(--green-deep);
    background: linear-gradient(120deg, var(--green-deep) 0%, var(--green) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lead {
    font-size: 19px;
    color: var(--ink-soft);
    line-height: 1.55;
    max-width: 520px;
}

.signup-form {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-lg);
}

.signup-form h2 {
    font-size: 22px;
    letter-spacing: -0.01em;
    margin-bottom: 4px;
}

.form-sub {
    color: var(--ink-muted);
    font-size: 14px;
    margin-bottom: 22px;
}

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

.form-row label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--ink-soft);
    margin-bottom: 6px;
    letter-spacing: 0.01em;
}

.form-row input[type="text"],
.form-row input[type="email"] {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 16px;
    font-family: inherit;
    background: var(--bg);
    color: var(--ink);
    transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}

.form-row input[type="text"]:focus,
.form-row input[type="email"]:focus {
    outline: none;
    border-color: var(--green);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(61, 122, 82, 0.15);
}

/* Honeypot — visually hidden but still in the DOM */
.hp-field {
    position: absolute;
    left: -10000px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 22px;
}

.checkbox-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--green-deep);
    flex-shrink: 0;
}

.checkbox-row label {
    font-size: 13px;
    color: var(--ink-soft);
    line-height: 1.5;
    margin: 0;
    font-weight: 400;
}

.checkbox-row label a {
    text-decoration: underline;
}

.btn-primary {
    display: inline-block;
    width: 100%;
    background: var(--green-deep);
    color: var(--white);
    border: none;
    padding: 14px 24px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: transform 0.1s, background 0.15s, box-shadow 0.15s;
    box-shadow: var(--shadow);
    letter-spacing: 0.01em;
}

.btn-primary:hover {
    background: var(--green);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-large {
    width: auto;
    padding: 16px 36px;
    font-size: 17px;
}

/* ============================================
   Features
   ============================================ */

.features {
    padding: 100px 0 80px;
    background: var(--white);
}

.section-title {
    font-size: clamp(28px, 3.5vw, 40px);
    line-height: 1.15;
    letter-spacing: -0.02em;
    text-align: center;
    margin-bottom: 14px;
    font-weight: 800;
}

.section-lead {
    text-align: center;
    color: var(--ink-soft);
    font-size: 18px;
    max-width: 640px;
    margin: 0 auto 56px;
    line-height: 1.55;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--green-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.feature-icon {
    font-size: 28px;
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    color: var(--green-deep);
    box-shadow: var(--shadow-sm);
}

.feature-card h3 {
    font-size: 19px;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
    font-weight: 700;
}

.feature-card p {
    color: var(--ink-soft);
    font-size: 15px;
    line-height: 1.6;
}

.feature-card em {
    color: var(--green-deep);
    font-style: italic;
}

/* ============================================
   Roadmap
   ============================================ */

.roadmap {
    padding: 100px 0;
    background: var(--green-soft);
}

.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.roadmap-item {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px;
    border: 1px solid var(--border);
}

.roadmap-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--green-deep);
    background: var(--green-light);
    padding: 4px 10px;
    border-radius: 100px;
    margin-bottom: 14px;
}

.roadmap-item h3 {
    font-size: 18px;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
    font-weight: 700;
}

.roadmap-item p {
    color: var(--ink-soft);
    font-size: 15px;
    line-height: 1.55;
}

/* ============================================
   CTA band
   ============================================ */

.cta-band {
    padding: 80px 0;
    background: var(--green-deep);
    color: var(--white);
    text-align: center;
}

.cta-band h2 {
    font-size: clamp(24px, 3vw, 32px);
    letter-spacing: -0.02em;
    margin-bottom: 28px;
    font-weight: 700;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.25;
}

.cta-band .btn-primary {
    background: var(--white);
    color: var(--green-deep);
}

.cta-band .btn-primary:hover {
    background: var(--green-light);
    color: var(--green-deep);
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
    background: var(--ink);
    color: var(--ink-muted);
    padding: 48px 0 32px;
}

.site-footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--white);
    font-weight: 700;
    font-size: 20px;
}

.footer-brand .logo-mark {
    color: var(--green);
}

.footer-nav {
    display: flex;
    gap: 28px;
}

.footer-nav a {
    color: var(--ink-muted);
    font-size: 14px;
}

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

.footer-copy {
    font-size: 13px;
    color: var(--ink-muted);
    opacity: 0.7;
}

/* ============================================
   Inner pages (privacy, terms, thanks)
   ============================================ */

.page {
    padding: 60px 0 80px;
    max-width: 720px;
    margin: 0 auto;
}

.page h1 {
    font-size: 36px;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    font-weight: 800;
    line-height: 1.15;
}

.page .updated {
    color: var(--ink-muted);
    font-size: 14px;
    margin-bottom: 32px;
}

.page h2 {
    font-size: 22px;
    margin-top: 32px;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
    font-weight: 700;
}

.page p, .page ul {
    color: var(--ink-soft);
    margin-bottom: 14px;
    line-height: 1.65;
}

.page ul {
    padding-left: 22px;
}

.page li {
    margin-bottom: 6px;
}

.thanks-page {
    padding: 120px 0;
    text-align: center;
    max-width: 580px;
    margin: 0 auto;
}

.thanks-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--green-light);
    color: var(--green-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    margin: 0 auto 28px;
}

.thanks-page h1 {
    font-size: 36px;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    font-weight: 800;
}

.thanks-page p {
    color: var(--ink-soft);
    font-size: 17px;
    line-height: 1.6;
    margin-bottom: 28px;
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: var(--green-deep);
    border: 1px solid var(--green-deep);
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.15s;
}

.btn-secondary:hover {
    background: var(--green-deep);
    color: var(--white);
}

/* ============================================
   Error display (for signup.php failures)
   ============================================ */

.error-box {
    background: #fff5f5;
    border: 1px solid #ffd0d0;
    color: #b03030;
    padding: 14px 18px;
    border-radius: 10px;
    font-size: 14px;
    margin-bottom: 20px;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 860px) {
    .hero {
        padding: 56px 0 40px;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .feature-grid,
    .roadmap-grid {
        grid-template-columns: 1fr;
    }

    .features,
    .roadmap {
        padding: 64px 0;
    }

    .site-header nav a:not(.nav-cta) {
        display: none;
    }

    .signup-form {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    body { font-size: 16px; }

    .container { padding: 0 18px; }

    .hero h1 { font-size: 36px; }

    .lead { font-size: 17px; }

    .cta-band { padding: 56px 0; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}