* { font-family: 'Plus Jakarta Sans', sans-serif; }
body {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
    min-height: 100vh;
}
.ocean {
    position: fixed; bottom: 0; left: 0; width: 100%; height: 200px;
    overflow: hidden; z-index: 0; opacity: 0.3;
}
.wave {
    position: absolute; bottom: 0; left: 0; width: 200%; height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%230ea5e9' fill-opacity='0.3' d='M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E") repeat-x;
    animation: wave 10s linear infinite;
}
.wave:nth-child(2) { bottom: 10px; opacity: 0.5; animation: wave 15s linear infinite reverse; }
@keyframes wave {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.glass-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 100px rgba(14, 165, 233, 0.1);
}
.input-group { position: relative; transition: all 0.3s ease; }
.input-field {
    background: #f8fafc; border: 2px solid #e2e8f0; transition: all 0.3s ease;
}
.input-field:focus {
    background: #ffffff; border-color: #0ea5e9;
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1);
}
.input-field.error { border-color: #ef4444; background: #fef2f2; animation: shake 0.5s ease-in-out; }
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}
.btn-primary {
    background: linear-gradient(135deg, #0284c7 0%, #0ea5e9 50%, #38bdf8 100%);
    background-size: 200% 200%; transition: all 0.3s ease;
}
.btn-primary:hover {
    background-position: 100% 100%; transform: translateY(-2px);
    box-shadow: 0 10px 30px -10px rgba(14, 165, 233, 0.5);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary.loading { pointer-events: none; opacity: 0.8; }
.logo-container {
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 50%, #0369a1 100%);
    position: relative; overflow: hidden;
}
.logo-container::before {
    content: '';
    position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shine 3s infinite;
}
@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}
.toast {
    position: fixed; top: 20px; right: 20px; padding: 16px 24px; border-radius: 12px;
    color: white; font-weight: 500; transform: translateX(400px);
    transition: transform 0.3s ease; z-index: 50;
    display: flex; align-items: center; gap: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}
.toast.show { transform: translateX(0); }
.toast.error { background: linear-gradient(135deg, #ef4444, #dc2626); }
.toast.success { background: linear-gradient(135deg, #10b981, #059669); }
.floating-label {
    position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
    color: #94a3b8; font-size: 14px; pointer-events: none;
    transition: all 0.3s ease; background: transparent; padding: 0 4px;
}
.input-field:focus ~ .floating-label,
.input-field:not(:placeholder-shown) ~ .floating-label {
    top: 0; font-size: 11px; color: #0ea5e9; background: white; font-weight: 600;
}
.input-field.error ~ .floating-label { color: #ef4444; }
.spinner {
    width: 20px; height: 20px; border: 3px solid rgba(255,255,255,0.3);
    border-top-color: white; border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (max-width: 640px) {
    .glass-card { margin: 16px; padding: 32px 24px; border-radius: 24px; }
    .ocean { height: 100px; }
}
.particle {
    position: fixed; background: rgba(14, 165, 233, 0.1); border-radius: 50%;
    pointer-events: none; animation: float 20s infinite ease-in-out;
}
@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) translateX(50px); opacity: 0; }
}