/*==================================================
REMOTE DIGITAL TOWER
Style.css - Full Version (Optimized & Fixed)
Author: RemoteTowers.ir
==================================================*/

/*====================
RESET & VARIABLES
====================*/
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #00d9ff;
    --secondary: #0095ff;
    --cyan: #7cfbff;
    --dark: #05070d;
    --dark2: #0a1222;
    --glass: rgba(255, 255, 255, .06);
    --border: rgba(0, 217, 255, .18);
    --text: #d8e3ec;
    --title: #ffffff;
    --shadow: 0 0 30px rgba(0, 217, 255, .18);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(180deg, #02040a, #07111f, #04060b);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.8;
}

/*====================
SCROLLBAR
====================*/
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #07101c;
}
::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 20px;
}

/*====================
BACKGROUND
====================*/
.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 217, 255, .05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 217, 255, .05) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -3;
    opacity: .35;
}

.bg-glow {
    position: fixed;
    width: 900px;
    height: 900px;
    left: -250px;
    top: -250px;
    background: radial-gradient(circle, rgba(0, 217, 255, .20), transparent 70%);
    z-index: -2;
    filter: blur(50px);
}

body::after {
    content: "";
    position: fixed;
    right: -250px;
    bottom: -250px;
    width: 900px;
    height: 900px;
    background: radial-gradient(circle, rgba(0, 120, 255, .15), transparent 70%);
    filter: blur(80px);
    z-index: -2;
}

/*====================
PARTICLES
====================*/
.particles {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(0,217,255,.3), transparent),
        radial-gradient(2px 2px at 40% 70%, rgba(0,217,255,.2), transparent),
        radial-gradient(2px 2px at 60% 20%, rgba(0,217,255,.3), transparent),
        radial-gradient(2px 2px at 80% 80%, rgba(0,217,255,.2), transparent),
        radial-gradient(2px 2px at 10% 90%, rgba(0,217,255,.25), transparent),
        radial-gradient(2px 2px at 90% 10%, rgba(0,217,255,.25), transparent);
    background-size: 200px 200px;
    opacity: .6;
}

/*====================
CONTAINER
====================*/
.container {
    width: 90%;
    max-width: 1350px;
    margin: auto;
}

/*====================
HEADER
====================*/
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    background: rgba(5, 10, 20, .55);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, .05);
    transition: .4s;
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
}

.logo img {
    width: 58px;
    height: 58px;
    object-fit: contain;
}

.logo h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    color: var(--cyan);
    letter-spacing: 3px;
}

.logo span {
    display: block;
    font-size: 12px;
    color: #93a8bc;
    letter-spacing: 3px;
    margin-top: 4px;
}

nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: white;
    font-weight: 500;
    transition: .35s;
    position: relative;
}

nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: .35s;
}

nav a:hover {
    color: var(--primary);
}
nav a:hover::after {
    width: 100%;
}

.menu-btn {
    display: none;
    font-size: 30px;
    cursor: pointer;
    color: white;
    background: none;
    border: none;
}

/*====================
HERO
====================*/
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 500px;
    align-items: center;
    gap: 60px;
    padding-top: 120px;
    position: relative;
}

.hero .overlay {
    display: none;
}

.hero-content h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 68px;
    line-height: 1.1;
    margin: 20px 0;
    color: white;
    text-shadow: 0 0 25px rgba(0, 217, 255, .35);
}

.small-title {
    color: var(--primary);
    letter-spacing: 5px;
    font-size: 14px;
    text-transform: uppercase;
    font-weight: 600;
}

.hero-text {
    font-size: 19px;
    max-width: 760px;
    color: #d2d9e4;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 36px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: .35s;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.primary {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: #000;
    box-shadow: 0 0 25px rgba(0, 217, 255, .35);
}
.primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 35px rgba(0, 217, 255, .45);
}

.secondary {
    border: 1px solid var(--primary);
    color: var(--primary);
    background: transparent;
}
.secondary:hover {
    background: var(--primary);
    color: #000;
}

/*====================
VIDEO - HERO
====================*/
.video-container {
    width: 100%;
    max-width: 560px;
    aspect-ratio: 16 / 9;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 0 40px rgba(0, 217, 255, .15);
    background: #000;
    position: relative;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/*====================
VIDEO GALLERY
====================*/
#video-gallery {
    padding: 60px 0 100px;
}

.video-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 40px;
}

.video-item {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 20px;
    text-align: center;
    transition: .35s;
    backdrop-filter: blur(10px);
}

.video-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 0 30px rgba(0, 217, 255, .2);
}

.video-item video {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    background: #000;
    display: block;
}

.video-item p {
    margin-top: 15px;
    color: #bfd1df;
    font-weight: 500;
    font-size: 16px;
    letter-spacing: 1px;
}

/*====================
HUD CARDS
====================*/
.hero-right {
    display: flex;
    flex-direction: column;
    gap: 25px;
    align-items: center;
}

.hud-card {
    width: 100%;
    max-width: 560px;
    background: var(--glass);
    border: 1px solid var(--border);
    padding: 18px 22px;
    border-radius: 18px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
}

.hud-card h4 {
    font-size: 13px;
    letter-spacing: 2px;
    color: #96b0c8;
    margin-bottom: 10px;
}

.hud-card h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 30px;
    color: var(--cyan);
}

/*====================
SECTIONS
====================*/
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h5 {
    color: var(--primary);
    letter-spacing: 4px;
    text-transform: uppercase;
    font-size: 14px;
    margin-bottom: 12px;
}

.section-title h2 {
    color: var(--title);
    font-family: 'Orbitron', sans-serif;
    font-size: 42px;
}

/*====================
STATS
====================*/
.stats {
    padding: 40px 0 80px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.stat {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 35px;
    text-align: center;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    transition: .35s;
}
.stat:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 30px rgba(0, 217, 255, .25);
}

.stat h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--cyan);
    font-size: 48px;
    margin-bottom: 10px;
}
.stat p {
    color: #a8bfd3;
}

/*====================
FLIGHT STATS
====================*/
#flight-stats {
    padding: 60px 0 100px;
}

.flight-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.flight-stat {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 35px 25px;
    text-align: center;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    transition: .35s;
}

.flight-stat:hover {
    transform: translateY(-8px);
    box-shadow: 0 0 30px rgba(0, 217, 255, .2);
}

.flight-number {
    font-family: 'Orbitron', sans-serif;
    color: var(--cyan);
    font-size: 42px;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.flight-stat p {
    color: #a8bfd3;
    font-size: 15px;
    letter-spacing: 1px;
}

/*====================
ABOUT
====================*/
.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.two-column h5 {
    color: var(--primary);
    letter-spacing: 3px;
}

.two-column h2 {
    font-family: 'Orbitron', sans-serif;
    color: #fff;
    font-size: 42px;
    margin: 15px 0 25px;
}

.check-list {
    margin-top: 25px;
    list-style: none;
}
.check-list li {
    margin: 12px 0;
    color: #dce8f4;
}
.check-list li::before {
    content: "✔";
    color: var(--primary);
    margin-right: 10px;
}

.glass-image {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 25px;
    overflow: hidden;
    padding: 10px;
}
.glass-image img {
    width: 100%;
    display: block;
    border-radius: 18px;
}

/*====================
CARDS
====================*/
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.card {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 35px;
    transition: .35s;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}
.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 35px rgba(0, 217, 255, .25);
}

.card .icon {
    font-size: 42px;
    margin-bottom: 18px;
}

.card h3 {
    color: #fff;
    margin-bottom: 15px;
    font-family: 'Orbitron', sans-serif;
}
.card p {
    color: #bfd1df;
}

/*====================
ARCHITECTURE
====================*/
.architecture {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
}

.step {
    width: 190px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
}

.step span {
    display: inline-flex;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #000;
    font-weight: 700;
    margin-bottom: 15px;
}

.step h3 {
    color: #fff;
    margin-bottom: 10px;
    font-size: 18px;
}
.step p {
    color: #bfd1df;
    font-size: 14px;
}

.arrow {
    color: var(--primary);
    font-size: 28px;
}

/*====================
DASHBOARD
====================*/
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
}

.box {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 28px;
    text-align: center;
    transition: .35s;
}
.box:hover {
    transform: translateY(-8px);
    box-shadow: 0 0 25px rgba(0, 217, 255, .20);
}

.box h4 {
    color: #93a8bc;
    margin-bottom: 10px;
    letter-spacing: 2px;
    font-size: 13px;
}
.box h2 {
    color: var(--cyan);
    font-family: 'Orbitron', sans-serif;
    font-size: 34px;
}

/*====================
CONTACT
====================*/
.contact-form {
    display: grid;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto 50px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
    color: #fff;
    font-size: 16px;
    transition: .3s;
    font-family: 'Inter', sans-serif;
}
.contact-form textarea {
    resize: vertical;
    min-height: 150px;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 20px rgba(0, 217, 255, .1);
}

.contact-form button {
    cursor: pointer;
    border: none;
    font-size: 16px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.contact-info div {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 25px;
    text-align: center;
}
.contact-info h3 {
    color: #fff;
    margin-bottom: 10px;
}
.contact-info p {
    color: #bfd1df;
}

/*====================
FOOTER
====================*/
footer {
    padding: 70px 0 25px;
    border-top: 1px solid rgba(255, 255, 255, .08);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-grid h3,
.footer-grid h4 {
    color: #fff;
    margin-bottom: 18px;
}

.footer-grid ul {
    list-style: none;
}
.footer-grid li {
    margin: 10px 0;
    color: #9eb5c8;
}
.footer-grid a {
    color: #9eb5c8;
    text-decoration: none;
    transition: .3s;
}
.footer-grid a:hover {
    color: var(--primary);
}

.copyright {
    margin-top: 40px;
    padding-top: 25px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, .08);
    color: #7e95a8;
}

/*====================
SCROLL REVEAL
====================*/
section,
.card,
.box,
.stat,
.step {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .8s ease, transform .8s ease;
}
.show {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/*====================
RESPONSIVE
====================*/

/* Tablets & Small Laptops */
@media(max-width:1100px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-text {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-buttons {
        justify-content: center;
    }
    .hero-right {
        margin-top: 40px;
    }
    .video-container {
        max-width: 100%;
    }
    .hud-card {
        max-width: 100%;
    }
    .two-column {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .check-list {
        text-align: left;
        display: inline-block;
    }
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    .flight-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .contact-info {
        grid-template-columns: 1fr;
    }
    .architecture {
        gap: 10px;
    }
    .video-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
}

/* Mobile Phones */
@media(max-width:768px) {
    nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(5, 10, 20, .95);
        backdrop-filter: blur(18px);
        padding: 20px 0;
        gap: 15px;
        border-bottom: 1px solid var(--border);
    }
    nav.active {
        display: flex;
    }
    .menu-btn {
        display: block;
    }

    .hero h1 {
        font-size: 44px;
    }
    .hero-text {
        font-size: 16px;
    }
    .video-container {
        max-width: 100%;
        aspect-ratio: 16 / 9;
    }
    .grid-4 {
        grid-template-columns: 1fr;
    }
    .flight-grid {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }
    .flight-number {
        font-size: 32px;
    }
    .flight-stat {
        padding: 25px 15px;
    }
    .section-title h2 {
        font-size: 30px;
    }
    .two-column h2 {
        font-size: 30px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .architecture {
        flex-direction: column;
    }
    .arrow {
        transform: rotate(90deg);
    }
    .stat h2 {
        font-size: 36px;
    }
    .step {
        width: 100%;
        max-width: 280px;
    }
    .logo h2 {
        font-size: 18px;
    }
    .logo span {
        font-size: 10px;
    }
    .hud-card h2 {
        font-size: 24px;
    }
    .contact-form {
        padding: 0 10px;
    }
    .dashboard {
        grid-template-columns: 1fr 1fr;
    }
    .video-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Small Phones */
@media(max-width:480px) {
    .hero h1 {
        font-size: 32px;
    }
    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .flight-grid {
        grid-template-columns: 1fr;
    }
    .flight-number {
        font-size: 28px;
    }
    .dashboard {
        grid-template-columns: 1fr;
    }
    .cards {
        grid-template-columns: 1fr;
    }
    .stat {
        padding: 25px;
    }
    section {
        padding: 60px 0;
    }
    .section-title h2 {
        font-size: 26px;
    }
}