/* ── Hero ── */
.hero {
    min-height: 100vh;
    display: flex; align-items: flex-start; justify-content: center;
    position: relative; padding: 7.5rem 2rem 5rem;
    overflow: hidden;
    isolation: isolate;
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% -10%, rgba(59, 130, 246, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 80% 80%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 40% 50% at 20% 90%, rgba(59, 130, 246, 0.05) 0%, transparent 40%);
    animation: bgPulse 8s ease-in-out infinite alternate;
}
@keyframes bgPulse {
    0% { opacity: 0.6; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.05); }
}

/* shimmer sweep across hero */
.hero-bg::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(105deg,
        transparent 30%,
        rgba(59, 130, 246, 0.04) 45%,
        rgba(99, 102, 241, 0.06) 50%,
        rgba(59, 130, 246, 0.04) 55%,
        transparent 70%
    );
    animation: shimmerSweep 6s ease-in-out infinite;
    pointer-events: none;
}
@keyframes shimmerSweep {
    0% { transform: translateX(-100%) skewX(-15deg); opacity: 0; }
    20% { opacity: 1; }
    60% { opacity: 1; }
    100% { transform: translateX(100%) skewX(-15deg); opacity: 0; }
}

/* rotating glow ring */
.hero-ring {
    position: absolute; z-index: 0;
    width: 600px; height: 600px;
    border-radius: 50%;
    border: 1px solid rgba(59, 130, 246, 0.05);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    animation: ringRotate 30s linear infinite;
    pointer-events: none;
}
.hero-ring::before {
    content: '';
    position: absolute;
    width: 100px; height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59,130,246,0.08) 0%, transparent 70%);
    top: -10px; left: 50%;
    transform: translateX(-50%);
}
@keyframes ringRotate {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* particle canvas */
#particleCanvas {
    position: absolute; inset: 0; z-index: 0;
    width: 100%; height: 100%;
    pointer-events: none;
}

/* floating stat badges */
.stat-badge {
    position: absolute; z-index: 1;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 0.6rem 1rem;
    pointer-events: none;
    animation: statFloat 8s ease-in-out infinite;
}
.stat-badge .stat-value {
    font-size: 1.25rem; font-weight: 700;
    background: linear-gradient(135deg, #fff, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-badge--accuracy { top: 22%; left: 4%; animation-delay: 0s; z-index: 3; }
.stat-badge--speed { top: 62%; left: 3%; animation-delay: -2s; z-index: 3; }
.stat-badge--volume { top: 20%; right: 4%; animation-delay: -4s; }
.stat-badge--satisfaction { bottom: 22%; right: 3%; animation-delay: -1s; }
.stat-badge--rating { top: 46%; right: 8%; animation-delay: -3s; }
@keyframes statFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-12px) rotate(0.5deg); }
    50% { transform: translateY(-4px) rotate(-0.3deg); }
    75% { transform: translateY(-18px) rotate(0.2deg); }
}

.hero-mascots {
    position: absolute;
    z-index: -1;
    inset: 0;
    pointer-events: none;
    opacity: 0.35;
}
.hero-mascot {
    position: absolute;
    display: block;
    width: 52px; height: 52px; /* smaller for elegance */
    transform-origin: center center;
    color: #fff;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.2));
}

/* ── Hero Content ── */
.hero-content {
    position: relative; z-index: 2;
    max-width: 1200px; text-align: left;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 5rem;
    margin-top: 1rem;
}
.hero-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.badge {
    display: inline-block;
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.25);
    color: #60a5fa; font-size: 0.8rem; font-weight: 600;
    padding: 0.4rem 1rem; border-radius: 100px;
    letter-spacing: 0.3px;
    animation: fadeUp 0.6s ease 0.4s both, badgePulse 2s ease 1s infinite;
}
.badge:hover { animation-play-state: paused; }
.hero h1 {
    font-size: clamp(2.3rem, 4.3vw, 4.2rem); font-weight: 900; line-height: 1.05;
    margin: 0;
    min-height: 1.3em;
    white-space: normal;
    text-wrap: balance;
}
.hero h1 .char {
    display: inline-block;
    animation: charPop 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
    color: #f1f5f9;
}
.hero h1 .char.space { width: 0.3em; }
.hero h1 .hero-heading-rest {
    display: inline-block;
    color: #f1f5f9;
    animation: none;
}
.hero h1 .char:nth-child(1) { animation-delay: 0.6s; }
.hero h1 .char:nth-child(2) { animation-delay: 0.62s; }
.hero h1 .char:nth-child(3) { animation-delay: 0.64s; }
.hero h1 .char:nth-child(4) { animation-delay: 0.66s; }
.hero h1 .char:nth-child(5) { animation-delay: 0.68s; }
.hero h1 .char:nth-child(6) { animation-delay: 0.70s; }
.hero h1 .char:nth-child(7) { animation-delay: 0.72s; }
.hero h1 .char:nth-child(8) { animation-delay: 0.74s; }
.hero h1 .char:nth-child(9) { animation-delay: 0.76s; }
.hero h1 .char:nth-child(10) { animation-delay: 0.78s; }
.hero h1 .char:nth-child(11) { animation-delay: 0.80s; }
.hero h1 .char:nth-child(12) { animation-delay: 0.82s; }
.hero h1 .char:nth-child(13) { animation-delay: 0.84s; }
.hero h1 .char:nth-child(14) { animation-delay: 0.86s; }
.hero h1 .char:nth-child(15) { animation-delay: 0.88s; }
.hero h1 .char:nth-child(16) { animation-delay: 0.90s; }
.hero h1 .char:nth-child(17) { animation-delay: 0.92s; }
.hero h1 .char:nth-child(18) { animation-delay: 0.94s; }
.hero h1 .char:nth-child(19) { animation-delay: 0.96s; }
.hero h1 .char:nth-child(20) { animation-delay: 0.98s; }
.hero h1 .char:nth-child(21) { animation-delay: 1.00s; }
.hero h1 .char:nth-child(22) { animation-delay: 1.02s; }
.hero h1 .char:nth-child(23) { animation-delay: 1.04s; }
.hero h1 .char:nth-child(24) { animation-delay: 1.06s; }
.hero h1 .char:nth-child(25) { animation-delay: 1.08s; }
.hero h1 .char:nth-child(26) { animation-delay: 1.10s; }
@keyframes charPop {
    0% { opacity: 0; transform: translateY(30px) scale(0.7); filter: blur(8px); }
    60% { transform: translateY(-5px) scale(1.05); filter: blur(0); }
    100% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}
.hero-sub {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: #94a3b8;
    max-width: 620px;
    margin: 0 0 3.5rem;
    line-height: 1.6;
    animation: fadeUp 0.6s ease 1.3s both;
    text-wrap: balance;
}
.get-started-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2.4rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border-radius: 99px;
    text-decoration: none;
    margin-bottom: 3rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
    animation: fadeUp 0.6s ease 1.4s both;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.get-started-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.4);
    filter: brightness(1.1);
}
.cursor-blink {
    display: inline-block;
    width: 2px; height: 1.1em;
    background: #60a5fa;
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: cursorBlink 0.8s step-end infinite;
}
@keyframes cursorBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ── Chat Preview ── */
.chat-preview {
    width: min(560px, 100%); margin: 0 auto;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    backdrop-filter: blur(12px);
    overflow: hidden;
    transition: all 0.3s ease;
    animation: fadeUp 0.6s ease 1.5s both, chatFloat 4s ease-in-out infinite;
    transform-style: preserve-3d;
    will-change: transform;
    position: relative;
}
.chat-preview::before {
    content: '';
    position: absolute; inset: -2px; z-index: -1;
    border-radius: 26px;
    background: conic-gradient(from 0deg,
        rgba(59,130,246,0.15),
        rgba(99,102,241,0.05),
        rgba(59,130,246,0.15),
        rgba(139,92,246,0.05),
        rgba(59,130,246,0.15)
    );
    animation: borderSpin 4s linear infinite;
    opacity: 0;
    transition: opacity 0.5s;
}
.chat-preview:hover::before { opacity: 1; }
.chat-preview::after {
    content: '';
    position: absolute; inset: 2px; z-index: -1;
    border-radius: 22px;
    background: #0a0f1e;
}
@keyframes borderSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
@keyframes chatFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}
.chat-preview:hover { animation-play-state: paused; }
.chat-preview:focus-within {
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.1), 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* ── tilt glow follower ── */
.tilt-glow {
    position: absolute; z-index: -1;
    width: 300px; height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59,130,246,0.08) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
    transform: translate(-50%, -50%);
}
.chat-preview:hover .tilt-glow { opacity: 1; }

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(10, 15, 30, 0.72);
}
.chat-header-left {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    min-width: 0;
}
.chat-avatar,
.msg-avatar {
    width: 34px; height: 34px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.chat-avatar {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.24), rgba(59, 130, 246, 0.08));
    color: #93c5fd;
    border: 1px solid rgba(96, 165, 250, 0.2);
}
.msg-avatar {
    background: rgba(255, 255, 255, 0.04);
    color: #94a3b8;
    border: 1px solid rgba(255, 255, 255, 0.06);
}
.chat-title {
    color: #f8fafc;
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.1;
}
.chat-status {
    color: #64748b;
    font-size: 0.78rem;
    margin-top: 0.1rem;
}
.chat-pill {
    font-size: 0.75rem;
    font-weight: 600;
    color: #93c5fd;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.18);
    padding: 0.4rem 0.7rem;
    border-radius: 999px;
    white-space: nowrap;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 0.95rem;
    padding: 1.1rem;
}
.msg {
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
}
.msg.user {
    flex-direction: row-reverse;
}
.msg-bubble {
    font-family: inherit;
    max-width: min(100%, 420px);
    padding: 0.9rem 1rem;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}
.msg.bot .msg-bubble {
    background: rgba(15, 23, 42, 0.86);
    color: #e2e8f0;
    border-top-left-radius: 8px;
}
.msg.user .msg-bubble {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.24), rgba(37, 99, 235, 0.18));
    color: #eff6ff;
    border-top-right-radius: 8px;
}
.msg-bubble p {
    font-size: 0.92rem;
    line-height: 1.65;
    white-space: pre-wrap;
}

.chat-suggestions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding: 0 1.1rem 1rem;
}
.chat-suggestions span {
    font-size: 0.76rem;
    color: #93c5fd;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.14);
    border-radius: 999px;
    padding: 0.4rem 0.7rem;
}

.chat-suggestions.fade-out {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.chat-input-area {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0 1.1rem 0.95rem;
}
.chat-input {
    flex: 1;
    min-width: 0;
    padding: 0.9rem 1rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.03);
    color: #e2e8f0;
    outline: none;
    font: inherit;
}
.chat-input::placeholder {
    color: #64748b;
}
.chat-input--static {
    display: flex;
    align-items: center;
    color: #64748b;
    cursor: default;
    user-select: none;
    pointer-events: none;
}
.chat-input-area--static .chat-send {
    pointer-events: none;
    opacity: 0.9;
}
.chat-send {
    width: 44px; height: 44px;
    border: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #f8fafc;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.28);
}
.chat-send:hover {
    transform: translateY(-1px);
}
.chat-file-bar {
    margin: 0 1.1rem 1rem;
    padding: 0.75rem 0.9rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #cbd5e1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}
.chat-file-remove {
    width: 28px; height: 28px;
    border: 0;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #e2e8f0;
    cursor: pointer;
}

.typing-text {
    animation: typingPulse 1.5s ease-in-out infinite;
}
@keyframes typingPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.copy-btn {
    position: absolute;
    top: 0.6rem;
    right: 0.6rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: #64748b;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    opacity: 0;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.msg.bot:hover .copy-btn {
    opacity: 1;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #f8fafc;
    border-color: rgba(255, 255, 255, 0.1);
}

.msg {
    animation: msgReveal 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes msgReveal {
    from { 
        opacity: 0; 
        transform: translateY(12px) scale(0.98); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0) scale(1); 
    }
}

/* ── Reset & Base ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #0a0f1e;
    color: #e2e8f0;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ── Navigation ── */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: 60px;
    display: flex;
    align-items: center;
    background: rgba(2, 6, 23, 0.72);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    isolation: isolate;
}

.navbar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(59, 130, 246, 0.3) 20%,
        rgba(99, 102, 241, 0.5) 50%,
        rgba(59, 130, 246, 0.3) 80%,
        transparent 100%
    );
    animation: navGlow 3s ease-in-out infinite alternate;
}

@keyframes navGlow {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

.navbar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 400px 40px at 50% 100%, rgba(59, 130, 246, 0.06), transparent);
    pointer-events: none;
}

.nav-inner {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    position: relative;
}

.logo-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(37, 99, 235, 0.1));
    border: 1px solid rgba(96, 165, 250, 0.2);
    animation: logoPulse 3s ease-in-out infinite;
    flex-shrink: 0;
}

.logo-icon::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 11px;
    background: conic-gradient(from 0deg, transparent, rgba(59,130,246,0.15), transparent, rgba(99,102,241,0.1), transparent);
    animation: logoSpin 4s linear infinite;
    z-index: -1;
}

@keyframes logoPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.15); }
    50% { box-shadow: 0 0 0 6px rgba(59, 130, 246, 0); }
}

@keyframes logoSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #f1f5f9 0%, #93c5fd 50%, #60a5fa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 110;
    transition: color 0.2s;
}

.nav-link {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #60a5fa;
    border-radius: 2px;
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover {
    color: #60a5fa;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff !important;
    padding: 0.5rem 1.25rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.82rem;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.08);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.nav-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg,
        transparent 30%,
        rgba(255, 255, 255, 0.12) 45%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.12) 55%,
        transparent 70%
    );
    transform: translateX(-100%) skewX(-15deg);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-cta:hover::before {
    transform: translateX(100%) skewX(-15deg);
}

.nav-cta:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.45);
}

.nav-cta:active {
    transform: scale(0.97);
}

/* ── Result Section ── */
.result-section {
    padding: 0 2rem 5rem;
    animation: fadeUp 0.6s ease;
}
.result-inner {
    max-width: 700px; margin: 0 auto;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 2.5rem;
    backdrop-filter: blur(8px);
}
.result-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 2rem;
}
.result-header h2 { font-size: 1.5rem; font-weight: 700; color: #f1f5f9; }
.score-ring { position: relative; width: 120px; height: 120px; }
.score-text {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: 800; color: #f1f5f9;
}
.result-details { display: flex; flex-direction: column; gap: 1rem; }
.result-item {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px; padding: 1rem 1.2rem;
    border-left: 3px solid #3b82f6;
}
.result-item.missing { border-left-color: #f59e0b; }
.result-item.matched { border-left-color: #10b981; }
.result-item h4 { font-size: 0.9rem; font-weight: 600; color: #94a3b8; margin-bottom: 0.3rem; }
.result-item p { font-size: 0.95rem; color: #e2e8f0; }
.reset-btn {
    margin-top: 1.5rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8; padding: 0.7rem 1.5rem; border-radius: 10px;
    font-size: 0.9rem; font-weight: 600; cursor: pointer;
    transition: all 0.2s;
}
.reset-btn:hover { background: rgba(255, 255, 255, 0.1); color: #f1f5f9; }

.copy-report-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    width: fit-content;
}
.copy-report-btn:hover {
    background: rgba(59, 130, 246, 0.2);
    color: #fff;
}

/* ── Section Titles (shared) ── */
.section-title {
    font-size: 2.2rem; font-weight: 800; text-align: center; margin-bottom: 3rem;
    background: linear-gradient(135deg, #f1f5f9, #94a3b8);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Features ── */
.features { padding: 6rem 2rem; max-width: 1200px; margin: 0 auto; }
.features .section-title {
    font-size: 2.4rem; font-weight: 800; text-align: center; margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #f1f5f9, #60a5fa);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}
.features .section-title + p {
    text-align: center; color: #64748b; font-size: 1.05rem; max-width: 560px; margin: 0 auto 2rem;
    line-height: 1.6;
}

/* ── Features Grid ── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

/* ── Bento Grid ── */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    max-width: 1000px;
    margin: 2rem auto 0;
}
.bento-card { min-width: 0; }
.bento--tall { grid-row: span 2; }
.bento--tall .feature-card { min-height: 100%; }
.bento--wide { grid-column: span 2; }

.bento--wide .feature-card {
    background: radial-gradient(circle at 12% 0%, rgba(59, 130, 246, 0.15), transparent 80%), 
                rgba(255, 255, 255, 0.02);
    box-shadow: 0 10px 40px -15px rgba(59, 130, 246, 0.3);
    border-color: rgba(59, 130, 246, 0.2);
}

@media (max-width: 968px) {
    .bento-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .bento-grid { grid-template-columns: 1fr; }
    .bento--tall { grid-row: span 1; }
    .bento--wide { grid-column: span 1; }
}

.feature-card {
    position: relative;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px; padding: 2rem 1.75rem;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    isolation: isolate;
    overflow: hidden;
    height: 100%;
}
.feature-card::before {
    content: '';
    position: absolute; inset: 0; z-index: -1;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
}
.feature-card::after {
    content: '';
    position: absolute; inset: -1px; z-index: -2;
    border-radius: 21px;
    background: conic-gradient(from 0deg, transparent, rgba(59,130,246,0.08), transparent, rgba(99,102,241,0.05), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}
.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(59, 130, 246, 0.15);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover::after { opacity: 1; }
.feature-icon {
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.04));
    border: 1px solid rgba(59, 130, 246, 0.12);
    border-radius: 14px; color: #93c5fd; margin-bottom: 1.2rem;
    transition: all 0.3s ease;
}
.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.25), rgba(59, 130, 246, 0.08));
    border-color: rgba(59, 130, 246, 0.25);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.1);
}
.feature-card h3 { font-size: 1.15rem; font-weight: 700; color: #f1f5f9; margin-bottom: 0.5rem; letter-spacing: -0.01em; }
.feature-card p { font-size: 0.9rem; color: #64748b; line-height: 1.7; }

/* ── How It Works ── */
.how-it-works { padding: 5rem 2rem; max-width: 1000px; margin: 0 auto; }
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}
.step {
    text-align: center;
    padding: 3rem 2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.step:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(59, 130, 246, 0.3);
}
.step-number {
    width: 56px; height: 56px; margin: 0 auto 1rem;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border-radius: 50%; font-size: 1.3rem; font-weight: 800; color: white;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.25);
    transition: transform 0.3s ease;
}

.step:hover .step-number {
    animation: stepNumberPulse 1.5s ease-in-out infinite;
}

.step h3 { font-size: 1.05rem; font-weight: 700; color: #f1f5f9; margin-bottom: 0.4rem; }
.step p { font-size: 0.88rem; color: #64748b; max-width: 260px; margin: 0 auto; }

@keyframes stepNumberPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); box-shadow: 0 0 30px rgba(59, 130, 246, 0.5); }
}

@keyframes stepGlowEntrance {
    0% { border-color: rgba(255, 255, 255, 0.08); box-shadow: none; }
    50% { border-color: rgba(59, 130, 246, 0.5); box-shadow: 0 0 25px rgba(59, 130, 246, 0.2); }
    100% { border-color: rgba(255, 255, 255, 0.08); box-shadow: none; }
}

/* ── Footer ── */
.footer {
    text-align: center; padding: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: #475569; font-size: 0.85rem;
}

/* ── Additional Keyframes ── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes badgePulse {
    0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.3); }
    70% { box-shadow: 0 0 0 10px rgba(59, 130, 246, 0); }
    100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
}

/* ── Scroll Reveal ── */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(40px); transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(-40px); transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-right.visible { opacity: 1; transform: translateX(0); }
.reveal-scale { opacity: 0; transform: scale(0.9); transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-scale.visible { opacity: 1; transform: scale(1); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* stagger children for grids */
.features-grid.stagger-children .feature-card,
.bento-grid.stagger-children .bento-card { opacity: 0; transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
.bento-grid.stagger-children .bento-card:nth-child(1) { transform: translateX(-60px); }
.bento-grid.stagger-children .bento-card:nth-child(2) { transform: translateY(40px); }
.bento-grid.stagger-children .bento-card:nth-child(3) { transform: translateY(40px); }
.bento-grid.stagger-children .bento-card:nth-child(4) { transform: translateX(60px); }
.features-grid.stagger-children.visible .feature-card,
.bento-grid.stagger-children.visible .bento-card { opacity: 1; transform: translate(0, 0); }
.features-grid.stagger-children.visible .feature-card:nth-child(1) { transition-delay: 0.1s; }
.features-grid.stagger-children.visible .feature-card:nth-child(2) { transition-delay: 0.2s; }
.features-grid.stagger-children.visible .feature-card:nth-child(3) { transition-delay: 0.3s; }
.features-grid.stagger-children.visible .feature-card:nth-child(4) { transition-delay: 0.4s; }
.bento-grid.stagger-children.visible .bento-card:nth-child(1) { transition-delay: 0s; }
.bento-grid.stagger-children.visible .bento-card:nth-child(2) { transition-delay: 0.15s; }
.bento-grid.stagger-children.visible .bento-card:nth-child(3) { transition-delay: 0.3s; }
.bento-grid.stagger-children.visible .bento-card:nth-child(4) { transition-delay: 0.45s; }

[hidden] { display: none !important; }

/* ── Mobile ── */
/* ── Hero content stacking breakpoint ── */
@media (max-width: 968px) {
    .hero-content {
        flex-direction: column;
        gap: 2.5rem;
        text-align: center;
    }
    .hero-text {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .navbar { height: 54px; }
    .nav-inner { padding: 0 1rem; }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(10, 15, 30, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2.5rem;
        transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 105;
        border-left: 1px solid rgba(255, 255, 255, 0.06);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.4rem;
        font-weight: 700;
    }

    .nav-cta { padding: 0.4rem 0.9rem; font-size: 0.78rem; }
    .hero h1 { font-size: 2.2rem; }
    .hero h1 { white-space: normal; text-wrap: balance; }
    .hero-sub { font-size: 1rem; }
    .hero-crewmates { display: none; }
    .chat-preview { margin: 0 -0.5rem; border-radius: 18px; }
    .chat-header {
        padding: 0.9rem 1rem;
    }
    .chat-title { font-size: 0.9rem; }
    .chat-status { font-size: 0.72rem; }
    .chat-messages {
        padding: 0.95rem 1rem;
        gap: 0.8rem;
    }
    .msg-bubble {
        max-width: 100%;
        padding: 0.82rem 0.9rem;
    }
    .chat-suggestions {
        padding: 0 1rem 0.9rem;
    }
    .chat-suggestions span {
        font-size: 0.72rem;
    }
    .chat-input-area {
        padding: 0 1rem 0.95rem;
    }
    .chat-input {
        padding: 0.85rem 0.9rem;
    }
    .steps-grid { grid-template-columns: 1fr; }
    .result-header { flex-direction: column; gap: 1rem; text-align: center; }
    .features .section-title { text-align: center; }
    .features .section-title + p { text-align: center; max-width: 100%; }
    .stat-badge { display: none; }
}

@media (max-width: 480px) {
    .hero { padding: 5rem 1rem 3rem; }
    .hero h1 { font-size: 1.8rem; }
    .hero h1 { white-space: normal; text-wrap: balance; }
    .section-title { font-size: 1.6rem; }
}

/* ── Mockup Chat Rebuild Overrides ── */
.hero {
    min-height: 100svh;
}

.hero-content {
    width: min(1180px, 100%);
    max-width: 1180px;
}

.hero-sub {
    max-width: 760px;
    margin-bottom: 1rem;
}

.chat-preview {
    width: min(420px, 100%);
    min-height: 540px;
    padding: 0;
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(14, 20, 38, 0.96), rgba(8, 12, 24, 0.98));
    border: 1px solid rgba(148, 163, 184, 0.16);
    box-shadow:
        0 32px 96px rgba(0, 0, 0, 0.48),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
    display: flex;
    flex-direction: column;
}

.chat-preview::before {
    inset: -1px;
    border-radius: 29px;
    opacity: 0.25;
}

.chat-preview::after {
    inset: 1px;
    border-radius: 27px;
    background: linear-gradient(180deg, rgba(9, 15, 28, 0.98), rgba(7, 11, 22, 0.99));
}

.chat-header {
    padding: 1rem 1.15rem 0.9rem;
    background: rgba(11, 16, 30, 0.78);
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.chat-header-left {
    gap: 0.72rem;
}

.chat-header-copy {
    display: flex;
    flex-direction: column;
    gap: 0.05rem;
}

.chat-title {
    font-size: 0.92rem;
    letter-spacing: -0.01em;
}

.chat-status {
    font-size: 0.72rem;
    color: #94a3b8;
}

.chat-preview .chat-avatar {
    width: 28px;
    height: 28px;
    border-radius: 10px;
}

.chat-pill {
    font-size: 0.7rem;
    padding: 0.3rem 0.55rem;
    color: #c7ddff;
}

.chat-messages {
    position: relative;
    height: 360px;
    overflow-y: auto;
    padding: 1.25rem 1.15rem 0.5rem;
    gap: 0.72rem;
    flex: 1;
}

.chat-messages::-webkit-scrollbar {
    width: 4px;
}
.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.msg {
    width: 100%;
    gap: 0.52rem;
}

.msg-avatar {
    width: 22px;
    height: 22px;
    border-radius: 8px;
}

.msg-bubble {
    flex: 1;
    border-radius: 14px;
    padding: 0.66rem 0.72rem;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.18);
}

.msg-bubble p {
    font-size: 0.67rem;
    line-height: 1.55;
    text-align: left; /* Changed for cleaner chat bubbles */
    font-weight: 600;
    letter-spacing: -0.01em;
    white-space: pre-wrap;
}

.msg.bot .msg-bubble {
    width: auto;
    max-width: none;
    background: linear-gradient(180deg, rgba(16, 24, 39, 0.98), rgba(18, 28, 48, 0.9));
    position: relative;
    padding-right: 2.4rem;
}

.msg.user .msg-bubble {
    width: auto;
    max-width: none;
    background: linear-gradient(180deg, rgba(22, 44, 92, 0.96), rgba(16, 31, 71, 0.92));
}

.msg-bubble--narrow {
    width: auto;
    max-width: none;
}

.msg-bubble--wide {
    width: auto;
    max-width: none;
}

.chat-suggestions--floating {
    position: static;
    right: auto;
    top: auto;
    transform: none;
    width: 100%;
    padding: 0.4rem 1.15rem 0.8rem;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start; /* Changed for better alignment */
    gap: 0.45rem;
}

.chat-suggestions--floating span {
    display: inline-flex;
    width: auto;
    max-width: 100%; /* Keep max-width */
    padding: 0.5rem 0.82rem;
    border-radius: 999px;
    text-align: center;
    line-height: 1.1;
    font-size: 0.62rem;
    color: #c5ddff;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(96, 165, 250, 0.18);
    box-shadow: 0 10px 18px rgba(0, 0, 0, 0.15);
}

.chat-input-area {
    width: calc(100% - 2.3rem);
    margin: 0 auto 1.5rem;
    padding: 0.4rem 0.6rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    gap: 0.5rem;
    align-items: flex-end;
}

.chat-input--static {
    height: 34px;
    display: flex;
    align-items: center;
    flex: 1;
    padding: 0 0.85rem;
    border-radius: 12px;
    background: rgba(16, 23, 40, 0.92);
    border: 1px solid rgba(148, 163, 184, 0.08);
    color: #94a3b8; /* Keep color */
    font-size: 0.75rem;
}

.chat-preview .chat-input {
    background: transparent;
    border: none;
    padding: 0.5rem 0;
    font-size: 0.8rem;
    width: 100%;
    height: auto;
}

textarea.chat-input {
    resize: none;
    overflow-y: auto;
    word-wrap: break-word;
    white-space: pre-wrap;
    line-height: 1.5;
    field-sizing: content;
    min-height: 24px;
    max-height: 120px;
    font-family: inherit;
}

.chat-send {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.32);
    flex: 0 0 36px;
}

.msg-time {
    display: block;
    font-size: 0.65rem;
    color: #64748b;
    margin-top: 0.4rem;
    font-weight: 500;
}
.msg.user .msg-time { text-align: right; color: rgba(255,255,255,0.5); }

.chat-send:disabled {
    opacity: 1;
    cursor: default;
    pointer-events: none;
}

@media (max-width: 768px) {
    .hero-content {
        width: 100%;
    }

    .chat-preview {
        min-height: 540px;
    }

    .chat-messages {
        min-height: 380px;
    }

    .chat-suggestions--floating {
        width: 84px;
    }
}

@media (max-width: 480px) {
    .chat-preview {
        min-height: 500px;
        border-radius: 24px;
    }

    .chat-header {
        padding: 0.85rem 0.85rem 0.8rem;
    }

    .chat-messages {
        min-height: 340px; /* Adjusted min-height */
        padding: 0.9rem 0.8rem 0.75rem;
    }

    .msg-bubble p {
        font-size: 0.62rem;
    }

    .chat-suggestions--floating {
        right: 0.8rem;
    }
}