* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
background: #000;
color: #fff;
line-height: 1.6;
} header {
background: #000;
border-bottom: 1px solid #333;
position: sticky;
top: 0;
z-index: 100;
width: 100%;
}
nav {
max-width: 1400px;
margin: 0 auto;
padding: 1.5rem 2rem;
display: flex;
justify-content: space-between;
align-items: center;
}
.logo {
font-size: 1.5rem;
font-weight: 600;
color: #ff8c42;
text-decoration: none;
letter-spacing: -0.5px;
cursor: pointer;
}
.nav-links {
display: flex;
gap: 2.5rem;
list-style: none;
}
.nav-links a {
text-decoration: none;
color: #fff;
font-weight: 500;
font-size: 0.95rem;
transition: color 0.2s;
cursor: pointer;
}
.nav-links a:hover {
color: #ff8c42;
}
.cta-btn {
background: #ff8c42;
color: #000;
padding: 0.75rem 1.75rem;
border-radius: 6px;
text-decoration: none;
font-weight: 600;
font-size: 0.95rem;
transition: all 0.2s;
cursor: pointer;
border: none;
}
.cta-btn:hover {
background: #ff9c52;
transform: translateY(-1px);
} .menu-toggle {
display: none;
flex-direction: column;
cursor: pointer;
gap: 5px;
}
.menu-toggle span {
width: 25px;
height: 3px;
background: #ff8c42;
border-radius: 3px;
transition: all 0.3s;
} .page {
display: none;
}
.page.active {
display: block;
} .hero {
background: #000;
padding: 6rem 2rem 4rem;
text-align: center;
border-bottom: 1px solid #333;
}
.hero h1 {
font-size: 3.5rem;
margin-bottom: 1.5rem;
font-weight: 700;
letter-spacing: -2px;
color: #fff;
line-height: 1.1;
}
.hero p {
font-size: 1.25rem;
margin-bottom: 2rem;
color: #aaa;
max-width: 600px;
margin-left: auto;
margin-right: auto;
font-weight: 400;
} .calculator-section {
background: #000;
padding: 3rem 2rem 5rem;
display: flex;
justify-content: center;
align-items: center;
}
.calculator-container {
background: #1a1a1a;
border-radius: 20px;
padding: 1.5rem;
box-shadow: 0 20px 60px rgba(255, 140, 66, 0.2);
border: 1px solid #333;
width: 100%;
max-width: 380px;
}
.calculator {
background: linear-gradient(145deg, #1e1e1e, #0a0a0a);
border: 3px solid #333;
border-radius: 15px;
padding: 1.2rem;
width: 100%;
box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.5);
}
.brand {
text-align: right;
color: #666;
font-size: 0.75rem;
font-weight: bold;
margin-bottom: 0.5rem;
font-family: Arial, sans-serif;
}
.screen-container {
background: #9db89d;
border: 3px solid #333;
border-radius: 8px;
padding: 0.8rem;
margin-bottom: 1rem;
box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3);
}
.screen {
background: #aac8aa;
min-height: 90px;
padding: 0.8rem;
font-family: 'Courier New', monospace;
font-size: 1.3rem;
color: #000;
text-align: right;
word-wrap: break-word;
border-radius: 4px;
display: flex;
flex-direction: column;
justify-content: flex-end;
}
.screen-history {
font-size: 0.8rem;
color: #333;
margin-bottom: 0.3rem;
}
.mode-indicator {
display: flex;
justify-content: space-between;
padding: 0.4rem 0;
color: #666;
font-size: 0.65rem;
margin-bottom: 0.4rem;
}
.buttons-grid {
display: grid;
grid-template-columns: repeat(5, 1fr);
gap: 0.35rem;
}
.btn {
background: linear-gradient(145deg, #2d2d2d, #1a1a1a);
color: white;
border: 2px solid #444;
border-radius: 6px;
padding: 0.5rem 0.3rem;
font-size: 0.7rem;
font-weight: 600;
cursor: pointer;
transition: all 0.1s;
text-align: center;
box-shadow: 0 2px 0 #0a0a0a;
position: relative;
min-height: 42px;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
.btn:hover {
background: linear-gradient(145deg, #3d3d3d, #2a2a2a);
border-color: #ff8c42;
}
.btn:active {
transform: translateY(2px);
box-shadow: 0 1px 0 #0a0a0a;
}
.btn-label {
font-size: 0.5rem;
margin-bottom: 0.05rem;
font-weight: 500;
}
.btn-label.yellow {
color: #FFD700;
}
.btn-label.green {
color: #4ade80;
}
.btn-label.blue {
color: #60a5fa;
}
.btn-main {
font-size: 0.7rem;
font-weight: 600;
}
.btn-blue {
background: linear-gradient(145deg, #1e3a5f, #0f1e3a);
border-color: #0a1428;
color: #fff;
}
.btn-blue:hover {
background: linear-gradient(145deg, #2e4a6f, #1f2e4a);
}
.btn-yellow {
background: linear-gradient(145deg, #fbbf24, #f59e0b);
border-color: #d97706;
color: #000;
font-weight: 700;
}
.btn-yellow:hover {
background: linear-gradient(145deg, #fcd34d, #fbbf24);
}
.btn-green {
background: linear-gradient(145deg, #22c55e, #16a34a);
border-color: #15803d;
color: #000;
font-weight: 700;
}
.btn-green:hover {
background: linear-gradient(145deg, #4ade80, #22c55e);
}
.btn-white {
background: linear-gradient(145deg, #f8f8f8, #e0e0e0);
border-color: #c0c0c0;
color: #000;
font-weight: 700;
}
.btn-white:hover {
background: linear-gradient(145deg, #ffffff, #f0f0f0);
}
.btn-dark {
background: linear-gradient(145deg, #1f1f1f, #0a0a0a);
border-color: #000;
color: #fff;
font-weight: 700;
}
.btn-dark:hover {
background: linear-gradient(145deg, #2f2f2f, #1a1a1a);
}
.arrow-keys {
grid-column: span 2;
display: grid;
grid-template-columns: repeat(3, 1fr);
grid-template-rows: repeat(2, 1fr);
gap: 0.25rem;
}
.arrow-up {
grid-column: 2;
}
.arrow-left {
grid-column: 1;
grid-row: 2;
}
.arrow-down {
grid-column: 2;
grid-row: 2;
}
.arrow-right {
grid-column: 3;
grid-row: 2;
} .features {
background: #0a0a0a;
padding: 5rem 2rem;
border-top: 1px solid #333;
}
.features-container {
max-width: 1400px;
margin: 0 auto;
}
.features h2 {
text-align: center;
font-size: 2.5rem;
margin-bottom: 4rem;
color: #fff;
font-weight: 700;
letter-spacing: -1px;
}
.features-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 2rem;
}
.feature-card {
background: #1a1a1a;
padding: 2.5rem;
border-radius: 12px;
border: 1px solid #333;
transition: all 0.2s;
}
.feature-card:hover {
transform: translateY(-3px);
box-shadow: 0 4px 12px rgba(255, 140, 66, 0.2);
border-color: #ff8c42;
}
.feature-icon {
font-size: 2.5rem;
margin-bottom: 1.5rem;
opacity: 0.8;
}
.feature-card h3 {
font-size: 1.35rem;
margin-bottom: 1rem;
color: #ff8c42;
font-weight: 600;
}
.feature-card p {
color: #aaa;
line-height: 1.7;
font-size: 0.95rem;
} .content-page {
background: #000;
padding: 5rem 2rem;
min-height: calc(100vh - 300px);
}
.content-container {
max-width: 1200px;
margin: 0 auto;
}
.content-page h1 {
text-align: center;
font-size: 2.5rem;
margin-bottom: 3rem;
color: #fff;
font-weight: 700;
letter-spacing: -1px;
}
.content-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
gap: 2rem;
margin-bottom: 3rem;
}
.content-card {
background: #1a1a1a;
padding: 2rem;
border-radius: 12px;
border: 1px solid #333;
}
.content-card h3 {
font-size: 1.25rem;
margin-bottom: 1rem;
color: #ff8c42;
font-weight: 600;
}
.content-card p {
color: #aaa;
line-height: 1.8;
font-size: 0.95rem;
}
.content-card strong {
color: #fff;
}
.about-content,
.contact-content {
max-width: 900px;
margin: 0 auto;
}
.about-content p {
color: #aaa;
line-height: 1.9;
font-size: 1.05rem;
margin-bottom: 1.5rem;
text-align: left;
}
.contact-info {
background: #1a1a1a;
padding: 2rem;
border-radius: 12px;
margin: 2rem auto;
border: 1px solid #333;
max-width: 600px;
text-align: center;
}
.contact-info p {
margin: 0.75rem 0;
font-size: 1rem;
color: #aaa;
}
.contact-content>p {
color: #aaa;
font-size: 1.05rem;
margin-bottom: 1.5rem;
line-height: 1.8;
text-align: center;
}
.contact-note {
font-size: 0.9rem !important;
color: #666 !important;
} footer {
background: #000;
color: #666;
padding: 3rem 2rem;
text-align: center;
border-top: 1px solid #333;
}
.footer-links {
margin-bottom: 1rem;
display: flex;
justify-content: center;
align-items: center;
flex-wrap: wrap;
gap: 0.5rem;
}
.footer-links a {
color: #ff8c42;
text-decoration: none;
margin: 0 0.5rem;
transition: color 0.2s;
cursor: pointer;
}
.footer-links a:hover {
color: #ff9c52;
}
.footer-links span {
color: #333;
}
footer p {
font-size: 0.9rem;
margin: 0.5rem 0;
}
.disclaimer {
font-size: 0.85rem !important;
color: #555 !important;
margin-top: 1rem !important;
} @media (max-width: 968px) {
nav {
padding: 1rem 1.5rem;
}
.nav-links {
gap: 1.5rem;
}
.content-page h1 {
font-size: 2rem;
}
}
@media (max-width: 768px) {
.menu-toggle {
display: flex;
}
.nav-links {
position: fixed;
top: 70px;
left: -100%;
width: 100%;
height: calc(100vh - 70px);
background: #000;
flex-direction: column;
align-items: center;
justify-content: flex-start;
padding: 2rem;
gap: 2rem;
transition: left 0.3s ease;
border-top: 1px solid #333;
}
.nav-links.active {
left: 0;
}
.nav-links li {
width: 100%;
text-align: center;
}
.nav-links a {
display: block;
padding: 1rem;
font-size: 1.2rem;
}
.cta-btn {
padding: 0.6rem 1.2rem;
font-size: 0.85rem;
}
.hero {
padding: 4rem 1.5rem 3rem;
}
.hero h1 {
font-size: 2.5rem;
letter-spacing: -1px;
}
.hero p {
font-size: 1.1rem;
margin-bottom: 2rem;
}
.calculator-section {
padding: 2rem 1rem 3rem;
}
.calculator-container {
padding: 1.2rem;
max-width: 350px;
}
.calculator {
padding: 1rem;
}
.screen {
min-height: 80px;
font-size: 1.1rem;
padding: 0.7rem;
}
.buttons-grid {
gap: 0.3rem;
}
.btn {
min-height: 38px;
padding: 0.4rem 0.25rem;
font-size: 0.65rem;
}
.btn-label {
font-size: 0.5rem;
}
.btn-main {
font-size: 0.7rem;
}
.features,
.content-page {
padding: 3rem 1.5rem;
}
.features h2,
.content-page h1 {
font-size: 1.8rem;
margin-bottom: 2rem;
}
.features-grid,
.content-grid {
grid-template-columns: 1fr;
gap: 1.5rem;
}
.feature-card,
.content-card {
padding: 1.5rem;
}
.feature-card h3,
.content-card h3 {
font-size: 1.2rem;
}
.about-content p,
.contact-content p {
font-size: 0.95rem;
}
footer {
padding: 2rem 1.5rem;
}
.footer-links {
flex-direction: column;
gap: 1rem;
}
.footer-links span {
display: none;
}
}
@media (max-width: 480px) {
.logo {
font-size: 1.2rem;
}
.hero h1 {
font-size: 2rem;
}
.hero p {
font-size: 1rem;
}
.calculator-container {
padding: 1rem;
max-width: 320px;
}
.calculator {
padding: 0.8rem;
}
.brand {
font-size: 0.7rem;
}
.screen {
min-height: 75px;
font-size: 1rem;
padding: 0.6rem;
}
.mode-indicator {
font-size: 0.6rem;
}
.buttons-grid {
gap: 0.25rem;
}
.btn {
min-height: 36px;
padding: 0.35rem 0.2rem;
font-size: 0.6rem;
}
.btn-label {
font-size: 0.45rem;
}
.btn-main {
font-size: 0.65rem;
}
.features h2,
.content-page h1 {
font-size: 1.5rem;
}
.feature-icon {
font-size: 2rem;
}
}
@media (max-height: 600px) and (orientation: landscape) {
.hero {
padding: 2rem 1.5rem;
}
.hero h1 {
font-size: 2rem;
margin-bottom: 1rem;
}
.hero p {
font-size: 0.95rem;
margin-bottom: 1.5rem;
}
.calculator-section {
padding: 2rem 1rem;
}
.nav-links {
height: auto;
max-height: calc(100vh - 70px);
overflow-y: auto;
}
}