/* ==========================================================================
   Digital Green Tag — App Stylesheet
   Mobile-first, CSS custom properties, no frameworks.
   ========================================================================== */

/* ── Reset & base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    /* Brand */
    --color-green-900: #0a2614;
    --color-green-800: #0f3d1e;
    --color-green-700: #155228;
    --color-green-600: #1a6b3a;
    --color-green-500: #22884a;
    --color-green-400: #2eaa5c;
    --color-green-300: #52c27a;
    --color-green-200: #86d9a3;
    --color-green-100: #c3eece;
    --color-green-50:  #edf7f0;

    /* Status */
    --color-amber:  #e67e22;
    --color-red:    #c0392b;
    --color-blue:   #2980b9;
    --color-teal:   #16a085;

    /* Neutrals */
    --color-bg:         #f5f8f6;
    --color-surface:    #ffffff;
    --color-surface-2:  #eef4f0;
    --color-border:     #d0e0d6;
    --color-text:       #18291f;
    --color-text-muted: #4a6b55;
    --color-text-dim:   #85a892;

    /* Spacing */
    --sp-1: 0.25rem;
    --sp-2: 0.5rem;
    --sp-3: 0.75rem;
    --sp-4: 1rem;
    --sp-5: 1.25rem;
    --sp-6: 1.5rem;
    --sp-8: 2rem;
    --sp-10: 2.5rem;
    --sp-12: 3rem;
    --sp-16: 4rem;

    /* Type */
    --font-sans: 'DM Sans', system-ui, sans-serif;
    --font-mono: 'DM Mono', 'Courier New', monospace;

    /* Radii */
    --radius-sm:  0.375rem;
    --radius-md:  0.625rem;
    --radius-lg:  1rem;
    --radius-xl:  1.5rem;
    --radius-full: 999px;

    /* Shadows */
    --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
    --shadow-md:  0 4px 16px rgba(0,0,0,.12);
    --shadow-lg:  0 8px 32px rgba(0,0,0,.15);

    /* Transitions */
    --transition: 150ms ease;
}

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-sans);
    background:  var(--color-bg);
    color:       var(--color-text);
    line-height: 1.6;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

img, svg { display: block; max-width: 100%; }
a  { color: var(--color-green-300); text-decoration: none; }
a:hover { color: var(--color-green-200); }
button { cursor: pointer; font: inherit; }

/* ── Skip nav ──────────────────────────────────────────────────────────────── */
.skip-nav {
    position: absolute; top: -100%; left: var(--sp-4);
    background: var(--color-green-500); color: #fff; padding: var(--sp-2) var(--sp-4);
    border-radius: var(--radius-sm); z-index: 9999;
    transition: top var(--transition);
}
.skip-nav:focus { top: var(--sp-4); }

/* ── Site header ───────────────────────────────────────────────────────────── */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky; top: 0; z-index: 100;
    backdrop-filter: blur(8px);
}

.header-inner {
    display: flex; align-items: center; gap: var(--sp-4);
    padding: var(--sp-3) var(--sp-4);
    max-width: 72rem; margin: 0 auto;
}

.brand {
    display: flex; align-items: center; gap: var(--sp-2);
    color: var(--color-text); font-weight: 600; font-size: 1.05rem;
}
.brand-icon { font-size: 1.3rem; }
.brand-name { white-space: nowrap; }

.main-nav {
    display: none; /* hidden on mobile */
    align-items: center; gap: var(--sp-1);
    margin-left: var(--sp-4);
}
@media (min-width: 640px) { .main-nav { display: flex; } }

.nav-link {
    color: var(--color-text-muted); font-size: 0.9rem; font-weight: 500;
    padding: var(--sp-2) var(--sp-3); border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}
.nav-link:hover, .nav-link.active {
    color: var(--color-text); background: var(--color-surface-2);
}

.header-actions { display: flex; align-items: center; gap: var(--sp-2); margin-left: auto; }

.icon-btn {
    display: flex; align-items: center; justify-content: center;
    width: 2.25rem; height: 2.25rem;
    color: var(--color-text-muted); border-radius: var(--radius-full);
    transition: background var(--transition), color var(--transition);
}
.icon-btn svg { width: 1.2rem; height: 1.2rem; }
.icon-btn:hover { background: var(--color-surface-2); color: var(--color-text); }

/* User menu */
.user-menu { position: relative; }
.user-menu summary { list-style: none; }
.user-menu summary::-webkit-details-marker { display: none; }

.avatar-btn { display: flex; align-items: center; }
.avatar {
    width: 2rem; height: 2rem; border-radius: var(--radius-full);
    background: var(--color-green-600); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.8rem; font-weight: 700; cursor: pointer;
}

.dropdown {
    position: absolute; right: 0; top: calc(100% + var(--sp-2));
    background: var(--color-surface-2); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); min-width: 14rem;
    box-shadow: var(--shadow-lg); overflow: hidden; z-index: 200;
}
.dropdown-header {
    padding: var(--sp-3) var(--sp-4);
    border-bottom: 1px solid var(--color-border);
    display: flex; flex-direction: column; gap: var(--sp-1);
}
.dropdown-header strong { font-weight: 600; }
.dropdown-header small  { color: var(--color-text-muted); font-size: 0.8rem; }

.dropdown-item {
    display: block; width: 100%; padding: var(--sp-3) var(--sp-4);
    color: var(--color-text); font-size: 0.9rem; background: none; border: none;
    text-align: left; transition: background var(--transition);
}
.dropdown-item:hover  { background: var(--color-surface); }
.dropdown-item--danger:hover { background: rgba(192,57,43,.15); color: #e74c3c; }

/* ── Flash messages ─────────────────────────────────────────────────────────── */
.flash-region { padding: 0 var(--sp-4); }
.flash {
    display: flex; align-items: center; justify-content: space-between;
    padding: var(--sp-3) var(--sp-4); border-radius: var(--radius-md);
    margin-top: var(--sp-3); font-size: 0.9rem;
}
.flash--success { background: #d1fae5; color: #065f46; border-left: 3px solid var(--color-teal); }
.flash--error   { background: #fee2e2; color: #991b1b; border-left: 3px solid var(--color-red); }
.flash--warning { background: #fef3c7; color: #92400e; border-left: 3px solid var(--color-amber); }
.flash--info    { background: #dbeafe; color: #1e40af; border-left: 3px solid var(--color-blue); }
.flash-close    { background: none; border: none; color: var(--color-text-muted); font-size: 1.2rem; padding: 0 var(--sp-1); }

/* ── Main content ───────────────────────────────────────────────────────────── */
.main-content { flex: 1; }

/* ── Site footer ────────────────────────────────────────────────────────────── */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: var(--sp-6) var(--sp-4); text-align: center;
    color: var(--color-text-dim); font-size: 0.85rem;
}

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
    padding: var(--sp-3) var(--sp-5); border-radius: var(--radius-md);
    font-weight: 600; font-size: 0.95rem; border: 2px solid transparent;
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
    cursor: pointer; user-select: none; white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn--primary { background: var(--color-green-600); color: #fff; }
.btn--primary:hover { background: var(--color-green-500); color: #fff; }

.btn--ghost {
    background: transparent; color: var(--color-text);
    border-color: var(--color-border);
}
.btn--ghost:hover { background: var(--color-surface-2); border-color: var(--color-green-700); }

.btn--danger { background: var(--color-red); color: #fff; }
.btn--danger:hover { background: #e74c3c; }

.btn--sm { padding: var(--sp-2) var(--sp-3); font-size: 0.85rem; }
.btn--lg { padding: var(--sp-4) var(--sp-8); font-size: 1.05rem; }

/* ── Forms ──────────────────────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: var(--sp-2); margin-bottom: var(--sp-5); }
.form-label { font-size: 0.875rem; font-weight: 600; color: var(--color-text-muted); letter-spacing: 0.03em; }
.form-label .required { color: var(--color-red); margin-left: 2px; }

.form-input, .form-select, .form-textarea {
    background: var(--color-surface-2); border: 1px solid var(--color-border);
    color: var(--color-text); border-radius: var(--radius-md);
    padding: var(--sp-3) var(--sp-4); font: inherit; font-size: 1rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    width: 100%;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--color-text-dim); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none; border-color: var(--color-green-500);
    box-shadow: 0 0 0 3px rgba(34,136,74,.2);
}
.form-textarea { resize: vertical; min-height: 7rem; }
.form-hint  { font-size: 0.8rem; color: var(--color-text-muted); }
.form-error { font-size: 0.8rem; color: var(--color-red); }
.form-input.is-invalid { border-color: var(--color-red); }

/* ── Cards ──────────────────────────────────────────────────────────────────── */
.card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: var(--sp-5);
    box-shadow: var(--shadow-sm);
}
.card-title { font-size: 1.1rem; font-weight: 600; margin-bottom: var(--sp-4); }

/* ── Status badges ──────────────────────────────────────────────────────────── */
.badge {
    display: inline-flex; align-items: center; gap: var(--sp-1);
    padding: var(--sp-1) var(--sp-3); border-radius: var(--radius-full);
    font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
}
.badge--passed    { background: #d1fae5; color: #065f46; }
.badge--pending   { background: #fef3c7; color: #92400e; }
.badge--failed    { background: #fee2e2; color: #991b1b; }
.badge--scheduled { background: #dbeafe; color: #1e40af; }
.badge--draft     { background: #f3f4f6; color: #4b5563; }

/* ── Hero (landing page) ─────────────────────────────────────────────────────── */
.hero {
    padding: var(--sp-12) var(--sp-4);
    display: grid; gap: var(--sp-10);
    max-width: 72rem; margin: 0 auto;
}
@media (min-width: 768px) {
    .hero { grid-template-columns: 1fr 1fr; align-items: center; padding: var(--sp-16) var(--sp-8); }
}

.hero-badge {
    display: inline-block; background: var(--color-green-50);
    color: var(--color-green-600); border: 1px solid var(--color-green-100);
    padding: var(--sp-1) var(--sp-3); border-radius: var(--radius-full);
    font-size: 0.8rem; font-weight: 600; letter-spacing: 0.05em;
    text-transform: uppercase; margin-bottom: var(--sp-4);
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 700;
    line-height: 1.15; color: var(--color-text); margin-bottom: var(--sp-4);
}
.hero-title em { font-style: normal; color: var(--color-green-400); }

.hero-subtitle {
    font-size: 1.1rem; color: var(--color-text-muted);
    line-height: 1.7; max-width: 36ch; margin-bottom: var(--sp-8);
}

.hero-cta { display: flex; flex-wrap: wrap; gap: var(--sp-3); }

/* Phone mockup */
.phone-mockup {
    background: var(--color-surface-2); border: 2px solid var(--color-border);
    border-radius: 2rem; padding: var(--sp-3);
    box-shadow: var(--shadow-lg); max-width: 280px; margin: 0 auto;
}
.phone-screen { background: var(--color-bg); border-radius: 1.5rem; padding: var(--sp-3); overflow: hidden; }
.mock-status-bar {
    display: flex; justify-content: space-between;
    font-size: 0.7rem; color: var(--color-text-muted);
    padding: var(--sp-1) var(--sp-2) var(--sp-3);
    font-family: var(--font-mono);
}
.mock-card {
    border-radius: var(--radius-md); padding: var(--sp-3) var(--sp-4);
    margin-bottom: var(--sp-2); font-size: 0.85rem;
}
.mock-card p { font-weight: 600; color: var(--color-text); margin: var(--sp-1) 0 0; }
.mock-card small { color: var(--color-text-muted); font-size: 0.75rem; }
.mock-tag { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.05em; }
.mock-card--green  { background: #d1fae5; border-left: 3px solid var(--color-green-500); }
.mock-card--amber  { background: #fef3c7; border-left: 3px solid var(--color-amber); }
.mock-card--blue   { background: #dbeafe; border-left: 3px solid var(--color-blue); }

/* ── Features section ────────────────────────────────────────────────────────── */
.features {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--sp-12) var(--sp-4);
}
.features-inner { max-width: 72rem; margin: 0 auto; }
.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700;
    text-align: center; margin-bottom: var(--sp-8);
}
.features-grid {
    display: grid; gap: var(--sp-5);
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.feature-card {
    background: var(--color-surface-2); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: var(--sp-6);
    transition: border-color var(--transition), transform var(--transition);
}
.feature-card:hover { border-color: var(--color-green-700); transform: translateY(-2px); }
.feature-icon { font-size: 2rem; margin-bottom: var(--sp-3); }
.feature-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: var(--sp-2); }
.feature-card p  { color: var(--color-text-muted); font-size: 0.9rem; line-height: 1.6; }

/* ── Dashboard layout ─────────────────────────────────────────────────────────── */
.page-header {
    padding: var(--sp-6) var(--sp-4) var(--sp-4);
    border-bottom: 1px solid var(--color-border);
    display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4);
    max-width: 72rem; margin: 0 auto; width: 100%;
}
.page-title { font-size: 1.5rem; font-weight: 700; }

.page-body { max-width: 72rem; margin: 0 auto; padding: var(--sp-6) var(--sp-4); }

/* ── Utilities ───────────────────────────────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
           overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.mt-4 { margin-top: var(--sp-4); }
.mb-4 { margin-bottom: var(--sp-4); }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: var(--sp-2); }
.gap-4 { gap: var(--sp-4); }

/* ── Page transition ─────────────────────────────────────────────────────────── */
@keyframes page-enter {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}
.main-content { animation: page-enter .22s ease; }

/* ── Bottom navigation ───────────────────────────────────────────────────────── */
.bottom-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    height: 60px;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    align-items: stretch;
    z-index: 100;
    padding-bottom: env(safe-area-inset-bottom, 0);
}

.bottom-nav__item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--color-text-dim);
    text-decoration: none;
    font-size: .62rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
    transition: color var(--transition), background var(--transition);
    padding: .4rem 0;
    -webkit-tap-highlight-color: transparent;
    border-top: 2px solid transparent;
}
.bottom-nav__item:hover { color: var(--color-text-muted); }
.bottom-nav__item.is-active {
    color: var(--color-green-400);
    border-top-color: var(--color-green-500);
}
.bottom-nav__icon { width: 1.35rem; height: 1.35rem; stroke-width: 2; }
.bottom-nav__label { line-height: 1; }

/* Offset main content so it doesn't hide behind bottom nav */
@media (max-width: 9999px) {
    body:has(.bottom-nav) .main-content { padding-bottom: 72px; }
}

/* Hide bottom nav on large screens (desktop nav takes over) */
@media (min-width: 900px) {
    .bottom-nav { display: none; }
    body:has(.bottom-nav) .main-content { padding-bottom: 0; }
}

/* ── Notification badge ──────────────────────────────────────────────────────── */
.notif-badge {
    position: absolute;
    top: 2px; right: 2px;
    background: var(--color-red);
    color: #fff;
    font-size: .6rem;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 3px;
    line-height: 1;
}
/* icon-btn needs relative positioning for the badge */
.icon-btn { position: relative; }

/* ── 3-dot action panel ──────────────────────────────────────────────────────── */
.action-panel {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    pointer-events: none;
    opacity: 0;
    transition: opacity .2s;
}
.action-panel.is-open {
    pointer-events: auto;
    opacity: 1;
}

.action-panel__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.25);
    backdrop-filter: blur(2px);
    cursor: pointer;
}

.action-panel__sheet {
    position: relative;
    background: var(--color-surface-2);
    border-top: 1px solid var(--color-border);
    border-radius: 18px 18px 0 0;
    padding: 1rem 0 calc(env(safe-area-inset-bottom, 0) + 1.5rem);
    transform: translateY(100%);
    transition: transform .28s cubic-bezier(.25,.46,.45,.94);
    min-width: 280px;
    box-shadow: 0 -8px 32px rgba(0,0,0,.12);
}
.action-panel.is-open .action-panel__sheet {
    transform: translateY(0);
}

/* On wide screens, show as dropdown instead of bottom sheet */
@media (min-width: 640px) {
    .action-panel {
        justify-content: flex-start;
        align-items: flex-end;
        padding-top: 56px; /* below header */
        padding-right: var(--sp-4);
    }
    .action-panel__sheet {
        border-radius: 14px;
        border: 1px solid var(--color-border);
        min-width: 240px;
        max-width: 280px;
        transform: translateY(-8px) scale(.95);
        transform-origin: top right;
        margin-bottom: 0;
        padding-bottom: .5rem;
    }
    .action-panel.is-open .action-panel__sheet {
        transform: translateY(0) scale(1);
    }
}

/* User info header */
.action-panel__user {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .85rem 1.25rem;
}
.action-panel__avatar {
    width: 2.25rem; height: 2.25rem;
    background: var(--color-green-600);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: .9rem; color: #fff;
    flex-shrink: 0;
}
.action-panel__uname  { display: block; font-weight: 700; font-size: .9rem; color: var(--color-text); }
.action-panel__uemail { display: block; font-size: .75rem; color: var(--color-text-muted); }

.action-panel__divider {
    height: 1px;
    background: var(--color-border);
    margin: .35rem 0;
}

/* Menu items */
.action-panel__item {
    display: flex;
    align-items: center;
    gap: .75rem;
    width: 100%;
    padding: .8rem 1.25rem;
    color: var(--color-text);
    font-size: .9rem;
    font-weight: 500;
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    transition: background var(--transition), color var(--transition);
}
.action-panel__item:hover {
    background: var(--color-surface-2);
    color: var(--color-text);
}
.action-panel__item--danger { color: var(--color-red); }
.action-panel__item--danger:hover { background: rgba(192,57,43,.1); }