/* ============================================
   TV Remote – Clean layout, no Bootstrap layout
   ============================================ */

:root {
    --bg: #fafafa;
    --bg-dark: #1a1a2e;
    --bg-card: #ffffff;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.1);
    --width: 1100px;
    --space: 1.5rem;
    --section-pad: 4rem 0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ----- Container ----- */
.container {
    width: 100%;
    max-width: var(--width);
    margin: 0 auto;
    padding: 0 var(--space);
}

/* ----- Nav ----- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space) 0;
    transition: background 0.2s, box-shadow 0.2s;
}

.nav-scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    box-shadow: 0 1px 0 var(--border);
}

.nav-scrolled .nav-links a {
    color: var(--text);
}

.nav-scrolled .nav-links a:hover,
.nav-scrolled .nav-cta {
    color: var(--accent);
}

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

.nav-inner {
    max-width: var(--width);
    margin: 0 auto;
    padding: 0 var(--space);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo img {
    width: 48px;
    height: 48px;
    border-radius: 10px;
}

.nav-logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
    transition: color 0.2s;
}

.nav-scrolled .nav-logo-text {
    color: var(--text);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    padding: 0.5rem 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius);
    transition: color 0.2s, background 0.2s;
}

.nav-links a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.nav-cta {
    margin-left: 0.5rem;
    padding: 0.5rem 1rem !important;
    background: rgba(255, 255, 255, 0.2);
    color: #fff !important;
}

.nav-cta:hover {
    background: rgba(255, 255, 255, 0.3) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    color: inherit;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 900px) {
    .nav-toggle {
        display: flex;
        color: var(--text);
    }

    .nav-scrolled .nav-toggle {
        color: var(--text);
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 260px;
        max-width: 85vw;
        flex-direction: column;
        align-items: stretch;
        padding: 5rem 1.5rem 1.5rem;
        background: var(--bg-card);
        box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
        transform: translateX(100%);
        transition: transform 0.25s;
        gap: 0;
    }

    .nav-links-open {
        transform: translateX(0);
    }

    .nav-links a {
        color: var(--text) !important;
        padding: 0.75rem 1rem;
        border-radius: var(--radius);
    }

    .nav-links a:hover {
        background: var(--bg) !important;
        color: var(--accent) !important;
    }

    .nav-cta {
        margin-left: 0;
        margin-top: 0.5rem;
        background: var(--accent) !important;
        color: #fff !important;
        text-align: center;
    }
}

/* ----- Buttons ----- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

/* ----- Hero ----- */
.hero {
    min-height: 100vh;
    padding: 6rem 0 4rem;
    background: linear-gradient(160deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #fff;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-text h1 {
    margin: 0 0 1rem;
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.hero-text p {
    margin: 0 0 1.5rem;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 520px;
}

.hero-media {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-media img {
    max-height: 75vh;
    width: auto;
    filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.3));
    border-radius: var(--radius-lg);
}

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-media {
        order: -1;
    }

    .hero-media img {
        max-height: 50vh;
        margin: 0 auto;
    }
}

/* ----- Sections ----- */
.section {
    padding: var(--section-pad);
}

.section-light {
    background: var(--bg-card);
    box-shadow: 0 1px 0 var(--border);
}

.section-title {
    margin: 0 0 0.5rem;
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--text);
    text-align: center;
}

.section-lead {
    margin: 0 auto 2.5rem;
    max-width: 560px;
    font-size: 1.05rem;
    color: var(--text-muted);
    text-align: center;
}

/* ----- Screens ----- */
.screens-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: center;
    justify-items: center;
}

.screens-grid img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    max-height: 400px;
    width: auto;
    object-fit: contain;
}

@media (max-width: 768px) {
    .screens-grid {
        grid-template-columns: 1fr;
    }

    .screens-grid img {
        max-height: 320px;
    }
}

/* ----- About ----- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text .section-title {
    text-align: left;
}

.about-text p {
    margin: 0 0 1rem;
    color: var(--text-muted);
}

.about-media img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-text .section-title {
        text-align: center;
    }

    .about-media {
        order: -1;
    }
}

/* ----- Benefits ----- */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.benefit-card {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: box-shadow 0.2s, border-color 0.2s;
}

.benefit-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: rgba(99, 102, 241, 0.3);
}

.benefit-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent);
    font-size: 1.25rem;
    border-radius: var(--radius);
}

.benefit-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
}

.benefit-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.benefits-phone {
    text-align: center;
}

.benefits-phone img {
    max-height: 360px;
    width: auto;
    margin: 0 auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

@media (max-width: 900px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 500px) {
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

/* ----- Features (dark section) ----- */
.section-dark {
    background: linear-gradient(160deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
}

.section-dark .section-title {
    color: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-card {
    padding: 2rem 1.5rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    text-align: center;
    transition: background 0.2s, border-color 0.2s, transform 0.15s;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(99, 102, 241, 0.5);
    transform: translateY(-2px);
}

.feature-card i {
    display: block;
    margin-bottom: 1rem;
    font-size: 1.75rem;
    color: #a5b4fc;
}

.feature-card h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ----- Contact ----- */
.section-contact {
    background: linear-gradient(160deg, #16213e 0%, #1a1a2e 100%);
    color: #fff;
}

.section-contact .section-title {
    color: #fff;
}

.section-contact .section-lead {
    color: rgba(255, 255, 255, 0.8);
}

.contact-form {
    max-width: 420px;
    margin: 0 auto;
}

.contact-form input,
.contact-form textarea {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
    padding: 0.875rem 1rem;
    font-family: inherit;
    font-size: 1rem;
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.contact-form .form-btn {
    margin-top: 0.5rem;
    width: 100%;
    justify-content: center;
}

/* Snackbars */
.snackbar {
    position: fixed;
    left: 50%;
    bottom: 2rem;
    transform: translateX(-50%);
    padding: 1rem 1.5rem;
    max-width: 90vw;
    background: var(--text);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    visibility: hidden;
    z-index: 1000;
    transition: visibility 0.3s, opacity 0.3s, transform 0.3s;
}

.snackbar.show,
#snackbar.show,
.snackbar.showfail,
#snackbarfail.showfail {
    visibility: visible;
    animation: snackbarIn 0.3s ease forwards;
}

.snackbar-fail.showfail,
#snackbarfail.showfail {
    background: #b91c1c;
}

@keyframes snackbarIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* Spinner (form submit) */
.spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.spinner.hide-spinner {
    display: none !important;
}

.form-btn .spinner:not(.hide-spinner) {
    display: inline-block;
    margin-right: 0.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ----- Footer ----- */
.footer {
    padding: 2rem 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.footer-copy {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent);
}