:root{
    --bg-main: linear-gradient(135deg,#020617 0%,#0f172a 50%,#020617 100%);
    --card-bg: rgba(15,23,42,.92);
    --border: rgba(148,163,184,.2);
    --accent: #38bdf8;
    --accent-soft: rgba(56,189,248,.2);
    --text-main: #f8fafc;
    --text-muted: #cbd5e1;
    --success: #22c55e;
    --danger: #ef4444;
    --glass: rgba(255,255,255,0.03);
}

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

body{
    min-height:100vh;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg-main);
    color:var(--text-main);
    overflow-x:hidden;
}

/* ===== CONTAINER ===== */
.container{
    width:100%;
    max-width:720px;
    padding:20px;
    margin:0 auto;
}

.contact-card{
    background:var(--card-bg);
    backdrop-filter:blur(25px);
    border-radius:28px;
    border:1px solid var(--border);
    box-shadow:0 50px 100px rgba(0,0,0,.6);
    overflow:hidden;
    animation:fadeUp 0.8s cubic-bezier(0.25,0.46,0.45,0.94);
    position:relative;
}

.contact-card::before{
    content:'';
    position:absolute;
    top:0;
    left:0;
    right:0;
    height:1px;
    background:linear-gradient(90deg, transparent, var(--accent), transparent);
}

@keyframes fadeUp{
    from{opacity:0;transform:translateY(40px)}
    to{opacity:1;transform:translateY(0)}
}

/* ===== HEADER ===== */
.contact-header{
    padding:50px 35px 40px;
    text-align:center;
    background:linear-gradient(135deg, rgba(56,189,248,.2) 0%, transparent 70%);
    position:relative;
    overflow:hidden;
}

.contact-header::after{
    content:'';
    position:absolute;
    top:0;
    left:-100%;
    width:100%;
    height:100%;
    background:linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation:shine 3s infinite;
}

@keyframes shine{
    0%{left:-100%}
    100%{left:100%}
}

.contact-header h1{
    font-size:2.4rem;
    font-weight:900;
    margin-bottom:12px;
    background:linear-gradient(135deg, var(--accent), #60a5fa);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    position:relative;
    z-index:2;
}

.contact-header h1 i{
    background:linear-gradient(135deg, var(--accent), #60a5fa);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    margin-right:12px;
}

.contact-subtitle{
    color:var(--text-muted);
    font-size:1.05rem;
    font-weight:400;
    max-width:400px;
    margin:0 auto;
    line-height:1.6;
}

/* ===== BODY ===== */
.contact-body{
    padding:45px 35px 40px;
}

/* ===== FEATURES ===== */
.features{
    display:flex;
    gap:15px;
    margin-bottom:35px;
    justify-content:center;
}

.feature{
    background:var(--glass);
    border:1px solid var(--border);
    border-radius:20px;
    padding:25px 20px;
    text-align:center;
    flex:1;
    min-width:120px;
    transition:all 0.3s ease;
    backdrop-filter:blur(10px);
}

.feature:hover{
    transform:translateY(-5px);
    border-color:var(--accent);
    box-shadow:0 20px 40px rgba(56,189,248,.2);
}

.feature i{
    font-size:2.5rem;
    color:var(--accent);
    display:block;
    margin-bottom:10px;
}

.feature div:first-child{
    font-weight:800;
    font-size:1.1rem;
    color:var(--text-main);
    margin-bottom:4px;
}

.feature div:last-child{
    color:var(--text-muted);
    font-size:0.9rem;
}

/* ===== FORM ===== */
.form-group{
    margin-bottom:28px;
    position:relative;
}

.form-group label{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:12px;
    font-weight:700;
    font-size:1rem;
    color:var(--text-main);
}

.form-group label i{
    color:var(--accent);
    width:20px;
}

.form-input,
.form-textarea{
    width:100%;
    background:rgba(2,6,23,.8);
    border:1.5px solid var(--border);
    border-radius:20px;
    padding:18px 24px;
    font-size:1rem;
    color:var(--text-main);
    font-family:inherit;
    transition:all 0.4s cubic-bezier(0.4,0,0.2,1);
    backdrop-filter:blur(10px);
}

.form-textarea{
    min-height:160px;
    resize:vertical;
    line-height:1.6;
}

.form-input::placeholder,
.form-textarea::placeholder{
    color:var(--text-muted);
}

.form-input:focus,
.form-textarea:focus{
    outline:none;
    border-color:var(--accent);
    box-shadow:0 0 0 4px var(--accent-soft);
    background:rgba(2,6,23,1);
    transform:translateY(-2px);
}

/* ===== BUTTON ===== */
.submit-btn{
    width:100%;
    margin-top:25px;
    padding:22px;
    background:linear-gradient(135deg, var(--accent), #0ea5e9);
    border:none;
    border-radius:20px;
    color:#020617;
    font-weight:900;
    font-size:1.1rem;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:12px;
    transition:all 0.4s cubic-bezier(0.4,0,0.2,1);
    position:relative;
    overflow:hidden;
    text-transform:uppercase;
    letter-spacing:0.5px;
}

.submit-btn::before{
    content:'';
    position:absolute;
    top:0;
    left:-100%;
    width:100%;
    height:100%;
    background:linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition:left 0.5s;
}

.submit-btn:hover::before{
    left:100%;
}

.submit-btn:hover{
    transform:translateY(-4px);
    box-shadow:0 25px 50px rgba(56,189,248,.4);
}

.submit-btn:active{
    transform:translateY(-2px);
}

/* ===== FLASH MESSAGES ===== */
.flash-message{
    position:fixed;
    top:30px;
    right:30px;
    padding:20px 28px;
    border-radius:20px;
    font-weight:700;
    font-size:1rem;
    display:flex;
    align-items:center;
    gap:12px;
    color:#fff;
    z-index:9999;
    box-shadow:0 20px 40px rgba(0,0,0,.4);
    backdrop-filter:blur(20px);
    border:1px solid rgba(255,255,255,.2);
    animation:slideIn 0.5s cubic-bezier(0.25,0.46,0.45,0.94);
    max-width:400px;
}

@keyframes slideIn{
    from{
        transform:translateX(120%);
        opacity:0;
    }
    to{
        transform:translateX(0);
        opacity:1;
    }
}

.flash-success{
    background:linear-gradient(135deg, var(--success), #16a34a);
}

.flash-error{
    background:linear-gradient(135deg, var(--danger), #dc2626);
}

.flash-message i{
    font-size:1.3rem;
}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
    .container{padding:15px}
    .contact-header{padding:40px 25px 35px}
    .contact-header h1{font-size:2rem}
    .contact-body{padding:35px 25px 35px}
    .features{flex-direction:column}
    .feature{min-width:auto}
    .flash-message{left:20px;right:20px;max-width:none}
}

@media(max-width:480px){
    .contact-header h1{font-size:1.7rem}
    .contact-body{padding:30px 20px}
}