:root {
    --primary-gradient: linear-gradient(135deg, #10BCD3 0%, #0B99B8 100%);
    --primary-color: #10BCD3;
    --secondary-color: #0B99B8;

    --accent-color: #F0E68C;
    /* Cam vàng - Eye-catching */
    --secondary-accent: #06D6A0;
    /* Xanh lá mint - Harmony tươi mới */
    --accent-gradient: linear-gradient(45deg, #F39C12 0%, #E67E22 100%);
    --secondary-accent-gradient: linear-gradient(45deg, #06D6A0 0%, #00BF96 100%);
    /* GRADIENT MINT */

    --navbar-hover: #FFFFFF;
    /* Trắng - tương phản tốt */

    --card-bg: rgba(255, 255, 255, 0.95);
    --card-border: rgba(16, 188, 211, 0.1);
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);

    --token-bg: rgba(31, 42, 68, 0.03);
    --token-border: rgba(31, 42, 68, 0.1);

    /* Biến accent cũ (màu xanh) - Giữ lại nếu vẫn đang dùng ở đâu đó */
    --accent: #5DADE2;
    --accent-soft: rgba(93, 173, 226, 0.06);

    /* === Bảng màu trung tính (Xám Lạnh) === */
    --text-primary: #1e293b;
    /* Xanh đen (Văn bản chính) */
    --text-secondary: #64748b;
    /* Xám (Văn bản phụ) */
    --border-color: #e2e8f0;
    /* Viền */
    --background-light: #f8fafc;
    /* Nền nhạt */

    /* === Màu ngữ nghĩa === */
    --success-color: #06D6A0;
    /* Xanh lá mint */
    --error-color: #E74C3C;
    /* Đỏ */
    --warning-color: #F39C12;
    /* Cam vàng */

    --primary-color-soft: rgba(16, 188, 211, 0.1);
    --success-color-soft: rgba(6, 214, 160, 0.1);
    --accent-color-soft: rgba(243, 156, 18, 0.1);
    --error-color-soft: rgba(231, 76, 60, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-primary);
    background-color: #fff;
}

.text-gradient {
    /* Điều chỉnh gradient để bao gồm màu hồng */
    background: linear-gradient(120deg, var(--primary-color) 0%, var(--secondary-accent) 50%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    box-shadow: var(--card-shadow);
    padding: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
}

.feature-card .card-body {
    padding: 2rem;
}

.page-content {
    margin-top: 1rem;
}

.page .card {
    border-radius: 18px;
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
}

.token-field {
    min-height: 130px;
    font-family: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', 'Courier New', monospace;
    font-size: 0.9rem;
    background: var(--token-bg);
    border: 1px solid var(--token-border);
    color: var(--text-primary);
}

.token-output {
    min-height: 160px;
    background: var(--token-bg);
    border: 1px solid var(--token-border);
    border-radius: 16px;
    padding: 1.25rem;
    font-family: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', 'Courier New', monospace;
    font-size: 0.95rem;
    color: var(--text-secondary);
    overflow-x: auto;
}

.form-feedback {
    font-size: 0.95rem;
}

.form-feedback.success {
    color: var(--success-color);
}

.form-feedback.error {
    color: var(--error-color);
}

.bg-body-light {
    background: var(--background-light) !important;
}

code {
    padding: 2px 6px;
    border-radius: 6px;
    background: rgba(15, 23, 55, 0.07);
    color: var(--text-primary);
    font-size: 0.9em;
}

@media (max-width: 767px) {
    .glass-card {
        padding: 1.5rem;
    }

    .feature-card .card-body {
        padding: 1.5rem;
    }
}


.btn{
    display: flex;
    justify-content: center;
    align-items: center;
}

/* nút primary */
.btn-primary-gradient {
    background: var(--primary-gradient);
    color: white;
    padding: 0.65rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
}

.btn-primary-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    color: white;
}

.btn-primary-gradient:disabled,
.btn-primary-gradient.disabled {
    background: var(--primary-gradient);
    color: white;
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.45rem 1.2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
    text-align: center;
    display: inline-flex;
    justify-content: center;
    align-items: center;
}

.btn-outline-primary:hover {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.5);
}

/* nút accent */
.btn-accent {
    background: var(--accent-gradient);
    color: white;
    padding: 0.65rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 179, 71, 0.4);
    color: white;
}

.btn-outline-accent {
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    padding: 0.45rem 1.2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
    text-align: center;
    display: inline-flex;
    justify-content: center;
    align-items: center;
}

.btn-outline-accent:hover {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 5px 15px rgba(255, 179, 71, 0.5);
}


/* nút secondary accent */
.btn-secondary-accent {
    background: var(--secondary-accent-gradient);
    color: white;
    padding: 0.65rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
}

.btn-secondary-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(236, 72, 153, 0.4);
    color: white;
}

.btn-outline-secondary-accent {
    background: transparent;
    color: var(--secondary-accent);
    border: 2px solid var(--secondary-accent);
    padding: 0.45rem 1.2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
    text-align: center;
    display: inline-flex;
    justify-content: center;
    align-items: center;
}

.btn-outline-secondary-accent:hover {
    background: var(--secondary-accent-gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 5px 15px rgba(236, 72, 153, 0.5);
}

#global-toast-container {
    position: fixed !important;
    top: 3rem !important;
    right: 1rem !important;
    z-index: 2000 !important;
}