/*
Theme Name: DDFSOLUTION
Theme URI: https://ddfsolution.com
Author: DDFSOLUTION Team
Author URI: https://ddfsolution.com
Description: One-page professional theme for DDFSOLUTION – Hardware Repair, Web Design, Software Development & AI Education.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ddfsolution
Tags: one-page, business, services, responsive
*/

/* ===========================
   RESET & BASE
=========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0a0a0f;
    color: #e0e0e0;
    line-height: 1.7;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ===========================
   CSS VARIABLES
=========================== */
:root {
    --primary:   #00d4ff;
    --secondary: #7b2ff7;
    --accent:    #ff6b35;
    --dark:      #0a0a0f;
    --card-bg:   #13131e;
    --border:    rgba(0,212,255,0.15);
    --text:      #e0e0e0;
    --muted:     #888;
    --radius:    12px;
    --transition: 0.3s ease;
}

/* ===========================
   NAVBAR
=========================== */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    height: 70px;
    background: rgba(10,10,15,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}
.nav-logo {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 2px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text);
    transition: color var(--transition);
}
.nav-links a:hover { color: var(--primary); }
.nav-cta {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #000 !important;
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: 700 !important;
}
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span { width: 25px; height: 2px; background: var(--primary); border-radius: 2px; transition: var(--transition); }

/* ===========================
   HERO
=========================== */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 5% 40px;
    background: radial-gradient(ellipse at 50% 0%, rgba(0,212,255,0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 80%, rgba(123,47,247,0.12) 0%, transparent 50%),
                var(--dark);
    position: relative;
    overflow: hidden;
}
#hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,212,255,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,212,255,0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}
.hero-badge {
    display: inline-block;
    background: rgba(0,212,255,0.1);
    border: 1px solid var(--primary);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    padding: 6px 18px;
    border-radius: 30px;
    margin-bottom: 1.5rem;
}
.hero-title {
    font-size: clamp(2.5rem, 7vw, 5.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}
.hero-title .brand {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-title .tagline { display: block; font-size: 0.55em; color: var(--muted); font-weight: 400; letter-spacing: 2px; margin-top: 0.5rem; }
.hero-desc {
    max-width: 640px;
    margin: 0 auto 2.5rem;
    font-size: 1.1rem;
    color: var(--muted);
}
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #000;
    font-weight: 700;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 1rem;
    transition: transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(0,212,255,0.35); }
.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    font-weight: 700;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 1rem;
    transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn-outline:hover { background: var(--primary); color: #000; transform: translateY(-3px); }
.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    margin-top: 4rem;
    flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-num { font-size: 2rem; font-weight: 900; color: var(--primary); display: block; }
.stat-label { font-size: 0.8rem; color: var(--muted); letter-spacing: 1px; text-transform: uppercase; }

/* ===========================
   SECTIONS COMMON
=========================== */
section { padding: 100px 5%; }
.section-header { text-align: center; margin-bottom: 4rem; }
.section-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 0.75rem;
    display: block;
}
.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 1rem;
}
.section-desc { color: var(--muted); max-width: 560px; margin: 0 auto; font-size: 1rem; }

/* ===========================
   SERVICES
=========================== */
#services { background: var(--card-bg); }
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.service-card {
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}
.service-card:hover { transform: translateY(-8px); border-color: var(--primary); box-shadow: 0 20px 40px rgba(0,212,255,0.1); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
    width: 64px; height: 64px;
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}
.icon-hardware  { background: rgba(255,107,53,0.15);  color: var(--accent); }
.icon-web       { background: rgba(0,212,255,0.12);   color: var(--primary); }
.icon-software  { background: rgba(123,47,247,0.15);  color: var(--secondary); }
.icon-ai        { background: rgba(0,212,255,0.08);   color: #a78bfa; }
.service-title { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 0.75rem; }
.service-desc  { color: var(--muted); font-size: 0.95rem; margin-bottom: 1.5rem; }
.service-features { display: flex; flex-direction: column; gap: 0.5rem; }
.service-features li { font-size: 0.85rem; color: var(--text); display: flex; align-items: center; gap: 0.5rem; }
.service-features li::before { content: '✓'; color: var(--primary); font-weight: 700; }

/* ===========================
   ABOUT
=========================== */
#about { background: var(--dark); }
.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    max-width: 1100px;
    margin: 0 auto;
    align-items: center;
}
.about-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.about-glow {
    width: 320px; height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,212,255,0.2) 0%, rgba(123,47,247,0.15) 50%, transparent 70%);
    display: flex; align-items: center; justify-content: center;
    font-size: 8rem;
}
.about-text h2 { font-size: clamp(1.8rem,4vw,2.5rem); font-weight: 800; color: #fff; margin-bottom: 1rem; }
.about-text p  { color: var(--muted); margin-bottom: 1rem; }
.about-pills { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }
.pill {
    background: rgba(0,212,255,0.08);
    border: 1px solid var(--border);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ===========================
   WHY US
=========================== */
#why { background: var(--card-bg); }
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}
.why-item {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition), transform var(--transition);
}
.why-item:hover { border-color: var(--primary); transform: translateY(-4px); }
.why-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.why-item h3 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 0.5rem; }
.why-item p  { font-size: 0.88rem; color: var(--muted); }

/* ===========================
   CONTACT
=========================== */
#contact { background: var(--dark); }
.contact-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 3rem;
}
.contact-form { display: grid; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text); }
.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--transition);
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--primary); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select option { background: var(--card-bg); }
.form-submit { text-align: center; margin-top: 0.5rem; }
.form-submit .btn-primary { cursor: pointer; border: none; font-family: inherit; font-size: 1rem; }

/* ===========================
   FOOTER
=========================== */
#footer {
    background: #050508;
    padding: 3rem 5% 1.5rem;
    border-top: 1px solid var(--border);
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}
.footer-brand .nav-logo { font-size: 1.3rem; }
.footer-brand p { color: var(--muted); font-size: 0.88rem; margin-top: 0.5rem; max-width: 220px; }
.footer-links h4 { color: #fff; font-size: 0.9rem; font-weight: 700; margin-bottom: 0.75rem; }
.footer-links ul { display: flex; flex-direction: column; gap: 0.4rem; }
.footer-links a { color: var(--muted); font-size: 0.85rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { text-align: center; color: var(--muted); font-size: 0.8rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }

/* ===========================
   PLUGIN NOTICE AREA
=========================== */
.ddf-plugin-notice {
    background: rgba(0,212,255,0.07);
    border-left: 4px solid var(--primary);
    border-radius: 0 8px 8px 0;
    padding: 1rem 1.5rem;
    color: var(--text);
    font-size: 0.9rem;
    margin: 1rem 0;
}

/* ===========================
   SCROLL TO TOP
=========================== */
#scrollTop {
    position: fixed;
    bottom: 2rem; right: 2rem;
    width: 44px; height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    opacity: 0; pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
    font-size: 1.1rem;
    color: #000;
    font-weight: 900;
    z-index: 999;
}
#scrollTop.visible { opacity: 1; pointer-events: auto; }
#scrollTop:hover { transform: scale(1.1); }

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 900px) {
    .nav-links { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: rgba(10,10,15,0.98); padding: 1.5rem; gap: 1.25rem; border-bottom: 1px solid var(--border); }
    .nav-links.open { display: flex; }
    .hamburger { display: flex; }
    .about-inner { grid-template-columns: 1fr; gap: 2.5rem; }
    .about-visual { display: none; }
    .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
    section { padding: 70px 5%; }
    .hero-stats { gap: 1.5rem; }
    .contact-wrapper { padding: 2rem 1.25rem; }
}