@import url('https://fonts.googleapis.com/css2?family=Work+Sans:wght@300;400;500;600;700;800&display=swap');

/* =====================
   DESIGN TOKENS
   ===================== */
:root {
    --blue-50:  #EFF6FF;
    --blue-100: #DBEAFE;
    --blue-500: #3B82F6;
    --blue-600: #2563EB;
    --blue-700: #1D4ED8;
    --blue-900: #1E3A8A;

    --primary:        var(--blue-600);
    --primary-hover:  var(--blue-700);
    --primary-light:  var(--blue-50);
    --primary-ring:   rgba(37, 99, 235, 0.2);

    --bg:         #FFFFFF;
    --surface:    #F8FAFC;
    --surface-2:  #F1F5F9;
    --border:     #E2E8F0;
    --border-strong: #CBD5E1;

    --text-900:   #0F172A;
    --text-700:   #334155;
    --text-500:   #64748B;
    --text-400:   #94A3B8;

    --shadow-sm:  0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
    --shadow-lg:  0 20px 40px rgba(37,99,235,0.10), 0 4px 16px rgba(0,0,0,0.06);
    --shadow-xl:  0 30px 60px rgba(37,99,235,0.15);

    --radius-sm:  8px;
    --radius-md:  14px;
    --radius-lg:  20px;
    --radius-xl:  28px;

    --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =====================
   RESET & BASE
   ===================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text-900);
    font-family: 'Work Sans', -apple-system, sans-serif;
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

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

/* =====================
   LAYOUT
   ===================== */
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

/* =====================
   NAVIGATION
   ===================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0;
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    list-style: none;
}

.nav-links a {
    display: block;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-700);
    text-decoration: none;
    transition: var(--transition);
}

.nav-links a:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.nav-cta {
    background: var(--primary) !important;
    color: #fff !important;
    padding: 7px 18px !important;
}

.nav-cta:hover {
    background: var(--primary-hover) !important;
    color: #fff !important;
}

/* =====================
   HERO SECTION
   ===================== */
.hero {
    text-align: center;
    padding: 80px 0 60px;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--blue-50);
    color: var(--blue-700);
    border: 1px solid var(--blue-100);
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 0.3px;
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    color: var(--text-900);
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

h1 .highlight {
    color: var(--primary);
}

.hero-sub {
    font-size: 1.15rem;
    color: var(--text-500);
    max-width: 560px;
    margin: 0 auto 40px;
    font-weight: 400;
    line-height: 1.7;
}

/* =====================
   INPUT / TOOL AREA
   ===================== */
.tool-card {
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 32px;
    max-width: 680px;
    margin: 0 auto;
}

.input-group {
    display: flex;
    gap: 10px;
}

.input-group input {
    flex: 1;
    border: 1.5px solid var(--border-strong);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    font-size: 1rem;
    font-family: 'Work Sans', sans-serif;
    color: var(--text-900);
    background: var(--surface);
    outline: none;
    transition: var(--transition);
}

.input-group input::placeholder {
    color: var(--text-400);
}

.input-group input:focus {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 4px var(--primary-ring);
}

/* =====================
   BUTTONS
   ===================== */
.btn-primary {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Work Sans', sans-serif;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(37,99,235,0.35);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
    padding: 13px 24px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: 'Work Sans', sans-serif;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--primary-light);
}

/* =====================
   RESULT CARD
   ===================== */
.result-card {
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px;
    margin-top: 28px;
    animation: slideUp 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: var(--shadow-md);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =====================
   TOOL GRID (Homepage)
   ===================== */
.section-label {
    text-align: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-400);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    text-align: center;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    color: var(--text-900);
    letter-spacing: -0.8px;
    margin-bottom: 8px;
}

.section-sub {
    text-align: center;
    color: var(--text-500);
    max-width: 500px;
    margin: 0 auto 48px;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 80px;
}

.tool-item {
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-decoration: none;
    color: inherit;
    display: block;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.tool-item::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.tool-item:hover {
    border-color: var(--blue-500);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.tool-item:hover::before {
    transform: scaleX(1);
}

.tool-icon {
    width: 52px;
    height: 52px;
    background: var(--blue-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 16px;
}

.tool-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-900);
    margin-bottom: 6px;
}

.tool-desc {
    font-size: 0.9rem;
    color: var(--text-500);
    line-height: 1.5;
}

.tool-arrow {
    position: absolute;
    top: 24px; right: 24px;
    color: var(--text-400);
    transition: var(--transition);
    font-size: 1.1rem;
}

.tool-item:hover .tool-arrow {
    color: var(--primary);
    transform: translateX(3px);
}

/* =====================
   HOW IT WORKS STEPS
   ===================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.step-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
}

.step-num {
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.step-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-900);
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.9rem;
    color: var(--text-500);
    line-height: 1.6;
}

/* =====================
   CTA BOX
   ===================== */
.cta-box {
    background: var(--blue-50);
    border: 1.5px solid var(--blue-100);
    padding: 56px 40px;
    border-radius: var(--radius-xl);
    text-align: center;
    margin: 48px 0;
}

.cta-box h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-900);
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.cta-box p {
    color: var(--text-500);
    margin-bottom: 28px;
    max-width: 460px;
    margin-left: auto;
    margin-right: auto;
}

/* =====================
   FOOTER
   ===================== */
footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 48px 0 32px;
    margin-top: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-500);
    font-size: 0.9rem;
    margin-top: 10px;
    max-width: 260px;
    line-height: 1.6;
}

.footer-col h4 {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-900);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col a {
    color: var(--text-500);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    color: var(--text-400);
    font-size: 0.85rem;
}

/* =====================
   HAMBURGER BUTTON
   ===================== */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    z-index: 1001;
}

.hamburger:hover { background: var(--surface); }

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-900);
    border-radius: 2px;
    transition: var(--transition);
    transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =====================
   MOBILE DRAWER MENU
   ===================== */
.mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-overlay.open {
    display: block;
    opacity: 1;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100dvh;
    background: var(--bg);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    box-shadow: -4px 0 32px rgba(0,0,0,0.12);
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.mobile-drawer.open { right: 0; }

.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.drawer-close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--surface);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-700);
    transition: var(--transition);
}
.drawer-close:hover { background: var(--border); }

.drawer-section-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-400);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 20px 20px 8px;
}

.drawer-nav {
    list-style: none;
    padding: 0 12px;
}

.drawer-nav li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 12px;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-700);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.drawer-nav li a:hover,
.drawer-nav li a.active {
    background: var(--primary-light);
    color: var(--primary);
}

.drawer-nav li a .nav-icon {
    width: 36px;
    height: 36px;
    background: var(--surface);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.drawer-cta {
    margin: 16px 12px 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.drawer-cta a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--primary);
    color: #fff !important;
    padding: 13px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.drawer-cta a:hover { background: var(--primary-hover); }

/* =====================
   MOBILE BOTTOM NAV BAR
   ===================== */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--border);
    z-index: 998;
    padding: 6px 0 max(6px, env(safe-area-inset-bottom));
}

.bottom-nav-inner {
    display: flex;
    justify-content: space-around;
    align-items: stretch;
}

.bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 6px 4px;
    text-decoration: none;
    color: var(--text-400);
    transition: var(--transition);
    border-radius: var(--radius-sm);
    min-width: 0;
}

.bottom-nav-item .bn-icon {
    font-size: 1.3rem;
    line-height: 1;
}

.bottom-nav-item .bn-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 60px;
}

.bottom-nav-item.active,
.bottom-nav-item:hover {
    color: var(--primary);
}

.bottom-nav-item.active .bn-icon {
    transform: translateY(-2px);
}

/* =====================
   RESPONSIVE BREAKPOINTS
   ===================== */
@media (max-width: 768px) {
    /* Show mobile controls */
    .hamburger { display: flex; }
    .nav-links  { display: none; }
    .mobile-bottom-nav { display: block; }

    /* Add bottom padding so content doesn't hide behind bottom nav */
    body { padding-bottom: 72px; }
    footer { padding-bottom: 80px; }

    /* Typography */
    h1 { letter-spacing: -0.5px; }

    /* Hero */
    .hero { padding: 48px 0 32px; }
    .hero-sub { font-size: 1rem; }

    /* Tool card input */
    .input-group { flex-direction: column; }
    .input-group input { width: 100%; }
    .btn-primary { justify-content: center; width: 100%; }
    .btn-outline  { justify-content: center; width: 100%; }
    .tool-card { padding: 20px; border-radius: var(--radius-lg); }

    /* Steps */
    .steps-grid { grid-template-columns: 1fr; }

    /* Result card flex */
    .result-card > div { flex-direction: column !important; }
    .result-card img { width: 100% !important; height: 200px !important; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }

    /* CTA */
    .cta-box { padding: 36px 20px; }
    .cta-box h2 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .tool-grid { grid-template-columns: 1fr; }
    .hero { padding: 36px 0 24px; }
}