@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

* {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.glass-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #0088cc 50%, #00c6ff 100%);
}

.otp-input:focus {
    box-shadow: 0 0 0 4px rgba(0, 136, 204, 0.15);
}

.channel-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.channel-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.tab-active {
    background: linear-gradient(135deg, #0088cc 0%, #0077b5 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(0, 136, 204, 0.39);
}

.status-dot {
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.btn-primary {
    background: linear-gradient(135deg, #0088cc 0%, #0077b5 100%);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px rgba(0, 136, 204, 0.5);
}

.hidden-section {
    display: none;
}

.code-digit {
    width: 60px;
    height: 64px;
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    transition: all 0.2s;
}

.code-digit:focus {
    border-color: #0088cc;
    outline: none;
    box-shadow: 0 0 0 4px rgba(0, 136, 204, 0.15);
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out;
}

.animate-slide-up {
    animation: slideUp 0.4s ease-out;
}

.animate-pulse-slow {
    animation: pulse 3s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes slideUp {
    0% { transform: translateY(20px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

.shake {
    animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}