/* === SleepGuard Brand Styles === */
:root {
    /* SleepGuard Brand Colors */
    --sg-midnight: #0d1b2a;
    --sg-deep-blue: #1b263b;
    --sg-navy: #243b55;
    --sg-slate: #2d4a6e;
    
    --sg-moon: #e8dcc4;
    --sg-moon-glow: #f5edd8;
    --sg-gold: #c9a227;
    --sg-soft-gold: #dfc06e;
    
    --sg-lavender: #a5b4c8;
    --sg-mist: #8899ab;
    --sg-cloud: #6b7d91;
    
    --sg-dream: #7b68ee;
    --sg-aurora: #9b7ed9;
    
    --text-primary: #f5f5f0;
    --text-secondary: #a5b4c8;
    --text-muted: #6b7d91;
    
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, sans-serif;
    --font-mono: 'Source Code Pro', monospace;
    
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--sg-midnight);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* === Starry Background === */
.stars-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    background: 
        radial-gradient(1px 1px at 20% 30%, rgba(255, 255, 255, 0.8) 0%, transparent 100%),
        radial-gradient(1px 1px at 40% 70%, rgba(255, 255, 255, 0.6) 0%, transparent 100%),
        radial-gradient(1px 1px at 50% 20%, rgba(255, 255, 255, 0.7) 0%, transparent 100%),
        radial-gradient(1px 1px at 60% 50%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
        radial-gradient(1px 1px at 70% 80%, rgba(255, 255, 255, 0.6) 0%, transparent 100%),
        radial-gradient(1px 1px at 80% 10%, rgba(255, 255, 255, 0.7) 0%, transparent 100%),
        radial-gradient(1px 1px at 90% 40%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
        radial-gradient(1px 1px at 10% 60%, rgba(255, 255, 255, 0.6) 0%, transparent 100%),
        radial-gradient(1px 1px at 30% 90%, rgba(255, 255, 255, 0.4) 0%, transparent 100%),
        radial-gradient(1px 1px at 85% 65%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
        radial-gradient(2px 2px at 15% 45%, rgba(255, 255, 255, 0.3) 0%, transparent 100%),
        radial-gradient(2px 2px at 75% 25%, rgba(255, 255, 255, 0.4) 0%, transparent 100%);
}

.gradient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    background: 
        radial-gradient(ellipse at 50% 0%, rgba(123, 104, 238, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 100% 50%, rgba(155, 126, 217, 0.1) 0%, transparent 40%),
        radial-gradient(ellipse at 0% 100%, rgba(201, 162, 39, 0.08) 0%, transparent 40%);
}

/* === Navbar === */
.sg-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 1.25rem 2rem;
    background: rgba(13, 27, 42, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(165, 180, 200, 0.1);
}

.nav-left { justify-self: start; }
.nav-right { justify-self: end; }

.back-link {
    font-size: 0.85rem;
    color: var(--sg-lavender);
    text-decoration: none;
    transition: color 0.2s ease;
}

.back-link:hover { color: var(--sg-moon); }

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sg-logo {
    font-size: 1.5rem;
    color: var(--sg-moon);
    text-shadow: 0 0 20px rgba(232, 220, 196, 0.5);
}

.sg-wordmark {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--sg-moon);
    letter-spacing: 0.05em;
}

.nav-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--sg-mist);
    text-transform: uppercase;
}

/* === Main Content === */
.sg-main {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    margin: 0 auto;
    padding: 7rem 2rem 4rem;
}

/* === Header === */
.sg-header {
    text-align: center;
    margin-bottom: 4rem;
}

.header-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    color: var(--sg-soft-gold);
    background: rgba(201, 162, 39, 0.15);
    padding: 0.5rem 1.5rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
}

.header-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 400;
    color: var(--sg-moon);
    margin-bottom: 2rem;
}

.header-transform {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.transform-box {
    text-align: center;
    padding: 1.5rem 2rem;
    background: rgba(27, 38, 59, 0.6);
    border: 1px solid rgba(165, 180, 200, 0.15);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.transform-box.from {
    border-color: rgba(155, 126, 217, 0.3);
}

.transform-box.to {
    border-color: rgba(201, 162, 39, 0.3);
}

.t-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: var(--sg-mist);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
}

.t-year {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
}

.transform-box.from .t-year { color: var(--sg-aurora); }
.transform-box.to .t-year { color: var(--sg-soft-gold); }

.transform-connector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.connector-line {
    width: 30px;
    height: 1px;
    background: linear-gradient(90deg, var(--sg-aurora), var(--sg-soft-gold));
}

.connector-icon {
    color: var(--sg-moon);
    font-size: 1.25rem;
    text-shadow: 0 0 15px rgba(232, 220, 196, 0.5);
}

/* === Sections === */
.sg-section {
    margin-bottom: 2rem;
}

/* === Cards === */
.sg-card {
    background: rgba(27, 38, 59, 0.5);
    border: 1px solid rgba(165, 180, 200, 0.1);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: rgba(36, 59, 85, 0.5);
    border-bottom: 1px solid rgba(165, 180, 200, 0.1);
}

.card-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--sg-soft-gold);
    background: rgba(201, 162, 39, 0.15);
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
}

.card-header h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--sg-moon);
}

.header-sub {
    font-weight: 400;
    color: var(--sg-mist);
    font-size: 1rem;
}

.card-body {
    padding: 1.5rem;
}

/* === Promise Card === */
.promise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.promise-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: rgba(13, 27, 42, 0.5);
    border-radius: 12px;
    border: 1px solid rgba(165, 180, 200, 0.08);
}

.promise-icon {
    font-size: 1.5rem;
}

.promise-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    color: var(--sg-mist);
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.25rem;
}

.promise-value {
    font-style: italic;
    color: var(--sg-lavender);
}

.constraint-box {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: rgba(155, 126, 217, 0.1);
    border: 1px solid rgba(155, 126, 217, 0.2);
    border-radius: 10px;
}

.constraint-icon { font-size: 1.25rem; }

.constraint-box p {
    color: var(--sg-lavender);
    margin: 0;
}

/* === Trap Card === */
.trap-header {
    background: rgba(139, 69, 69, 0.2);
    border-bottom-color: rgba(200, 100, 100, 0.2);
}

.trap-showcase {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2rem;
    align-items: center;
}

.trap-visual {
    position: relative;
}

.fake-dashboard {
    background: rgba(13, 27, 42, 0.8);
    border: 1px solid rgba(165, 180, 200, 0.15);
    border-radius: 12px;
    padding: 1rem;
}

.dash-header {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--sg-mist);
    margin-bottom: 0.75rem;
}

.dash-chart {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 80px;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
}

.chart-bar {
    flex: 1;
    background: linear-gradient(to top, var(--sg-slate), var(--sg-mist));
    border-radius: 2px;
    opacity: 0.5;
}

.dash-label {
    font-size: 0.65rem;
    color: var(--sg-cloud);
    text-align: center;
    margin-top: 0.5rem;
}

.trap-x {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 4rem;
    color: #c94a4a;
    text-shadow: 0 0 30px rgba(201, 74, 74, 0.5);
}

.trap-explanation h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--sg-moon);
    margin-bottom: 0.5rem;
}

.trap-quote {
    font-style: italic;
    color: var(--sg-mist);
    margin-bottom: 1rem;
}

.trap-failure {
    padding: 1rem;
    background: rgba(201, 74, 74, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(201, 74, 74, 0.2);
}

.fail-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    color: #e07a5f;
    display: block;
    margin-bottom: 0.25rem;
}

.trap-failure p {
    color: var(--sg-lavender);
    margin: 0;
}

/* === Spec Card === */
.spec-header {
    background: rgba(123, 104, 238, 0.1);
    border-bottom-color: rgba(123, 104, 238, 0.2);
}

.insight-banner {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(123, 104, 238, 0.1) 0%, rgba(155, 126, 217, 0.05) 100%);
    border-radius: 12px;
    margin-bottom: 2rem;
}

.insight-banner p {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--sg-lavender);
    margin: 0;
}

.core-loop-section {
    margin-bottom: 2rem;
}

.loop-title {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--sg-mist);
    text-align: center;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.loop-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.loop-node {
    text-align: center;
    padding: 1.25rem 1.5rem;
    background: rgba(13, 27, 42, 0.6);
    border: 1px solid rgba(165, 180, 200, 0.15);
    border-radius: 12px;
    min-width: 120px;
}

.loop-node.input { border-color: rgba(123, 104, 238, 0.3); }
.loop-node.process { border-color: rgba(201, 162, 39, 0.3); }
.loop-node.output { border-color: rgba(129, 178, 154, 0.3); }

.node-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.node-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    color: var(--sg-moon);
}

.node-detail {
    font-size: 0.75rem;
    color: var(--sg-mist);
}

.loop-flow {
    position: relative;
    width: 40px;
    height: 2px;
}

.flow-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--sg-aurora), var(--sg-soft-gold));
}

.flow-pulse {
    position: absolute;
    top: -3px;
    left: 0;
    width: 8px;
    height: 8px;
    background: var(--sg-moon);
    border-radius: 50%;
    animation: flowPulse 2s infinite;
}

@keyframes flowPulse {
    0% { left: 0; opacity: 1; }
    100% { left: calc(100% - 8px); opacity: 0.3; }
}

.mvp-reveal-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(201, 162, 39, 0.15) 0%, rgba(232, 220, 196, 0.05) 100%);
    border: 1px solid rgba(201, 162, 39, 0.3);
    border-radius: 12px;
}

.reveal-icon {
    font-size: 2.5rem;
    color: var(--sg-moon);
    text-shadow: 0 0 30px rgba(232, 220, 196, 0.5);
}

.reveal-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: var(--sg-soft-gold);
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.25rem;
}

.reveal-content h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--sg-moon);
}

/* === Tech Card === */
.tech-header {
    background: rgba(91, 192, 190, 0.1);
    border-bottom-color: rgba(91, 192, 190, 0.2);
}

.phone-demo {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    align-items: start;
}

.phone-frame {
    background: #0a0a0a;
    border-radius: 36px;
    padding: 12px;
    box-shadow: 
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 20px 50px rgba(0, 0, 0, 0.5);
}

.phone-notch {
    width: 100px;
    height: 24px;
    background: #0a0a0a;
    border-radius: 0 0 16px 16px;
    margin: 0 auto 8px;
}

.phone-screen {
    background: var(--sg-deep-blue);
    border-radius: 24px;
    overflow: hidden;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(13, 27, 42, 0.8);
    border-bottom: 1px solid rgba(165, 180, 200, 0.1);
}

.chat-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--sg-aurora), var(--sg-dream));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--sg-moon);
}

.chat-name {
    font-weight: 600;
    color: var(--sg-moon);
    flex: 1;
}

.chat-status {
    font-size: 0.7rem;
    color: #81b29a;
}

.chat-messages {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    max-width: 85%;
}

.message.user {
    align-self: flex-end;
}

.message.bot {
    align-self: flex-start;
}

.message-bubble {
    padding: 0.75rem 1rem;
    border-radius: 16px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.message.user .message-bubble {
    background: var(--sg-dream);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.bot .message-bubble {
    background: rgba(13, 27, 42, 0.8);
    border: 1px solid rgba(165, 180, 200, 0.15);
    border-bottom-left-radius: 4px;
    color: var(--sg-lavender);
}

.message.bot .message-bubble p {
    margin-bottom: 0.75rem;
}

.message-time {
    font-size: 0.65rem;
    color: var(--sg-cloud);
    margin-top: 0.25rem;
    text-align: right;
}

.message.bot .message-time {
    text-align: left;
}

.processing-indicator {
    background: rgba(155, 126, 217, 0.1);
    border: 1px dashed rgba(155, 126, 217, 0.3);
    border-radius: 12px;
    padding: 0.75rem 1rem;
}

.process-step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--sg-aurora);
    margin-bottom: 0.25rem;
}

.step-icon { font-size: 0.9rem; }

.process-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    background: rgba(224, 122, 95, 0.2);
    color: #e07a5f;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin: 0.25rem 0 0.5rem 1.4rem;
}

.audio-player {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(0, 0, 0, 0.3);
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.audio-player:hover {
    background: rgba(0, 0, 0, 0.5);
}

.audio-player:hover .audio-icon {
    transform: scale(1.1);
}

.audio-icon {
    width: 32px;
    height: 32px;
    background: var(--sg-soft-gold);
    color: var(--sg-midnight);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    transition: all 0.3s ease;
}

.audio-wave {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 2px;
    height: 24px;
}

.audio-wave span {
    flex: 1;
    background: var(--sg-mist);
    border-radius: 2px;
    height: 4px;
    transition: height 0.2s ease;
}

.audio-wave.playing span {
    background: var(--sg-aurora);
    animation: audioWave 0.8s ease-in-out infinite;
}

.audio-wave.playing span:nth-child(1) { animation-delay: 0s; }
.audio-wave.playing span:nth-child(2) { animation-delay: 0.1s; }
.audio-wave.playing span:nth-child(3) { animation-delay: 0.2s; }
.audio-wave.playing span:nth-child(4) { animation-delay: 0.3s; }
.audio-wave.playing span:nth-child(5) { animation-delay: 0.4s; }
.audio-wave.playing span:nth-child(6) { animation-delay: 0.5s; }
.audio-wave.playing span:nth-child(7) { animation-delay: 0.6s; }
.audio-wave.playing span:nth-child(8) { animation-delay: 0.7s; }
.audio-wave.playing span:nth-child(9) { animation-delay: 0.8s; }
.audio-wave.playing span:nth-child(10) { animation-delay: 0.9s; }

@keyframes audioWave {
    0%, 100% { height: 4px; }
    50% { height: 20px; }
}

.audio-duration {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--sg-mist);
}

.audio-name {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--sg-mist);
}

.tech-stack {
    background: rgba(13, 27, 42, 0.5);
    border: 1px solid rgba(165, 180, 200, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
}

.tech-stack h4 {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--sg-mist);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.stack-items {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.stack-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: rgba(27, 38, 59, 0.5);
    border-radius: 8px;
}

.stack-label {
    font-size: 0.8rem;
    color: var(--sg-mist);
}

.stack-value {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--sg-soft-gold);
}

/* === Conclusion Card === */
.conclusion-card {
    text-align: center;
    padding: 3rem;
    background: linear-gradient(135deg, rgba(123, 104, 238, 0.1) 0%, rgba(201, 162, 39, 0.1) 100%);
    border: 1px solid rgba(232, 220, 196, 0.2);
    border-radius: 16px;
}

.conclusion-moon {
    font-size: 3rem;
    color: var(--sg-moon);
    text-shadow: 0 0 40px rgba(232, 220, 196, 0.5);
    margin-bottom: 1rem;
}

.conclusion-card h2 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--sg-mist);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.conclusion-strike {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--sg-mist);
    text-decoration: line-through;
    opacity: 0.6;
    margin-bottom: 0.5rem;
}

.conclusion-reveal {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--sg-moon);
}

/* === Comparison Grid === */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.comp-card {
    background: rgba(27, 38, 59, 0.5);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(165, 180, 200, 0.1);
}

.comp-card.shell {
    border-color: rgba(201, 74, 74, 0.3);
}

.comp-card.brain {
    border-color: rgba(201, 162, 39, 0.3);
}

.comp-header {
    padding: 1.5rem;
    text-align: center;
}

.comp-card.shell .comp-header {
    background: rgba(201, 74, 74, 0.1);
}

.comp-card.brain .comp-header {
    background: rgba(201, 162, 39, 0.1);
}

.comp-icon {
    display: inline-block;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.comp-card.shell .comp-icon { color: #c94a4a; }
.comp-card.brain .comp-icon { color: var(--sg-moon); text-shadow: 0 0 20px rgba(232, 220, 196, 0.5); }

.comp-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.comp-card.shell .comp-header h3 { color: #e07a5f; }
.comp-card.brain .comp-header h3 { color: var(--sg-moon); }

.comp-subtitle {
    font-size: 0.8rem;
    color: var(--sg-mist);
}

.comp-list {
    list-style: none;
    padding: 1rem 1.5rem 1.5rem;
}

.comp-list li {
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(165, 180, 200, 0.08);
    color: var(--sg-lavender);
    font-size: 0.95rem;
}

.comp-list li:last-child {
    border-bottom: none;
}

/* === Navigation === */
.nav-section {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 3rem;
}

.sg-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 1rem 2rem;
    border-radius: 100px;
    text-decoration: none;
    transition: all 0.3s var(--ease-out-expo);
}

.sg-btn.primary {
    background: linear-gradient(135deg, var(--sg-soft-gold), var(--sg-gold));
    color: var(--sg-midnight);
}

.sg-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 162, 39, 0.3);
}

.sg-btn.secondary {
    background: rgba(27, 38, 59, 0.8);
    color: var(--sg-lavender);
    border: 1px solid rgba(165, 180, 200, 0.2);
}

.sg-btn.secondary:hover {
    background: rgba(36, 59, 85, 0.8);
    color: var(--sg-moon);
}

.btn-arrow {
    transition: transform 0.3s ease;
}

.sg-btn:hover .btn-arrow {
    transform: translateX(4px);
}

.sg-btn.secondary:hover .btn-arrow {
    transform: translateX(-4px);
}

/* === Footer === */
.sg-footer {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem;
    border-top: 1px solid rgba(165, 180, 200, 0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--sg-mist);
}

.footer-brand .sg-logo {
    font-size: 1rem;
}

.footer-note {
    font-size: 0.8rem;
    color: var(--sg-cloud);
}

/* === Responsive === */
@media (max-width: 768px) {
    .sg-navbar {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        text-align: center;
    }
    
    .nav-left, .nav-right { justify-self: center; }
    
    .sg-main { padding: 5rem 1rem 2rem; }
    
    .header-transform {
        flex-direction: column;
    }
    
    .transform-connector {
        transform: rotate(90deg);
    }
    
    .promise-grid,
    .trap-showcase,
    .phone-demo,
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .loop-visual {
        flex-direction: column;
    }
    
    .loop-flow {
        width: 2px;
        height: 30px;
    }
    
    .flow-line {
        width: 2px;
        height: 100%;
    }
    
    .nav-section {
        flex-direction: column;
    }
    
    .sg-btn {
        justify-content: center;
    }
}