/* ===== DoanhNghiepCuaToi Theme - Google-Inspired SaaS ===== */

:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #e8f0fe;
    --secondary: #34a853;
    --accent: #fbbc04;
    --danger: #ea4335;
    --dark: #202124;
    --gray: #5f6368;
    --gray-light: #f8f9fa;
}

/* ===== Reveal Animations ===== */
.reveal {
    opacity: 0;
    transition: all 0.8s ease;
}

.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease;
}

.reveal-down {
    opacity: 0;
    transform: translateY(-40px);
    transition: all 0.8s ease;
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: all 0.8s ease;
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: all 0.8s ease;
}

.reveal-zoom {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s ease;
}

.reveal.is-visible,
.reveal-up.is-visible,
.reveal-down.is-visible,
.reveal-left.is-visible,
.reveal-right.is-visible,
.reveal-zoom.is-visible {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

/* ===== Fade In ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* ===== Card Hover ===== */
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* ===== 3D Tilt Card ===== */
.tilt-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}

/* ===== Blob Container ===== */
.blob-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    animation: blobFloat 8s ease-in-out infinite alternate;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    right: -100px;
    opacity: 0.15;
}

.blob-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    bottom: -80px;
    left: -80px;
    opacity: 0.12;
    animation-delay: 2s;
}

.blob-3 {
    width: 250px;
    height: 250px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    opacity: 0.1;
    animation-delay: 4s;
}

@keyframes blobFloat {
    0% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
    100% {
        transform: translate(10px, -10px) scale(1.05);
    }
}

/* ===== Nav Link Underline Animation ===== */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* ===== Hero Gradient ===== */
.hero-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}

/* ===== Progress Ring ===== */
.progress-ring__circle {
    transition: stroke-dashoffset 0.35s;
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
}

/* ===== Counter ===== */
.counter-value {
    font-variant-numeric: tabular-nums;
}

/* ===== Auto Stagger ===== */
.stagger-grid > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-grid.is-visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Solution Steps ===== */
.solution-step {
    cursor: pointer;
    transition: all 0.3s ease;
}

.solution-step.active {
    background-color: var(--primary-light);
    border-color: var(--primary);
}

.solution-step .step-progress {
    stroke-dasharray: 113;
    stroke-dashoffset: 113;
}

.solution-step.active .step-progress {
    animation: progressRing 5s linear forwards;
}

@keyframes progressRing {
    to {
        stroke-dashoffset: 0;
    }
}

/* ===== Scrollbar Styles ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-light);
}

::-webkit-scrollbar-thumb {
    background: var(--gray);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}