:root {
    --color-dark-bg: #121212;
    --color-dark-text: #ffffff;
    --color-dark-secondary: #2c2c2c;
    --color-dark-cyan: #00bcd4;

    --color-light-bg: #ffffff;
    --color-light-text: #212529;
    --color-light-secondary: #f8f9fa;
    --color-light-cyan: #00bcd4;
}

html {
    scroll-behavior: smooth;
}

body {
    transition: background-color 0.5s, color 0.5s;
    font-family: 'Poppins', sans-serif;
}

.navbar {
    transition: background-color 0.5s;
    padding: 15px 0;
}

.card {
    transition: background-color 0.5s, color 0.5s;
    border: none;
    border-radius: 12px;
    overflow: hidden;
}

.btn {
    transition: background-color 0.3s, color 0.3s;
    border-radius: 30px;
    padding: 12px 30px;
    font-weight: 500;
}

.btn-cyan {
    background-color: var(--color-dark-cyan);
    color: white;
    border: none;
}

.btn-cyan:hover {
    background-color: #00acc1;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Light Mode */
.light-mode {
    background-color: var(--color-light-bg);
    color: var(--color-light-text);
}

.light-mode .bg-dark {
    background-color: var(--color-light-secondary) !important;
    color: var(--color-light-text) !important;
}

.light-mode .bg-secondary {
    background-color: #e9ecef !important;
    color: var(--color-light-text) !important;
}

.light-mode .text-light {
    color: var(--color-light-text) !important;
}

.light-mode .text-dark {
    color: var(--color-light-text) !important;
}

.light-mode .text-cyan {
    color: var(--color-light-cyan) !important;
}

.light-mode .navbar {
    background-color: rgba(248, 249, 250, 0.95) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.light-mode .navbar-dark .navbar-brand,
.light-mode .navbar-dark .nav-link {
    color: var(--color-light-text) !important;
}

.light-mode .card {
    background-color: white;
    color: var(--color-light-text);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

/* Dark Mode */
.dark-mode {
    background-color: var(--color-dark-bg);
    color: var(--color-dark-text);
}

.dark-mode .bg-dark {
    background-color: var(--color-dark-secondary) !important;
    color: var(--color-dark-text) !important;
}

.dark-mode .bg-secondary {
    background-color: #343a40 !important;
    color: var(--color-dark-text) !important;
}

.dark-mode .text-light {
    color: var(--color-dark-text) !important;
}

.dark-mode .text-dark {
    color: var(--color-dark-text) !important;
}

.dark-mode .text-cyan {
    color: var(--color-dark-cyan) !important;
}

.dark-mode .navbar {
    background-color: rgba(33, 37, 41, 0.95) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.dark-mode .card {
    background-color: var(--color-dark-secondary);
    color: var(--color-dark-text);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Animation utility classes */
.inline-block {
    display: inline-block;
}

/* Section padding */
section {
    padding: 100px 0;
}

/* Skill cards */
.skill-card {
    transition: transform 0.3s;
    height: 100%;
    cursor: pointer;
}

.skill-card:hover {
    transform: translateY(-8px);
}

/* Project cards */
.project-card {
    transition: transform 0.3s;
    overflow: hidden;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-8px);
}

.project-card img {
    transition: transform 0.5s;
    height: 200px;
    object-fit: cover;
}

.project-card:hover img {
    transform: scale(1.08);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.tech-tag {
    background-color: var(--color-dark-cyan);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
}

/* Custom section backgrounds */
#home {
    background: linear-gradient(135deg, var(--color-dark-secondary) 0%, var(--color-dark-bg) 100%);
}

.dark-mode #home {
    background: linear-gradient(135deg, var(--color-dark-secondary) 0%, var(--color-dark-bg) 100%);
}

.light-mode #home {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
}

/* Light mode button */
.light-mode #theme-toggle {
    color: black;
    /* icon color */
    border: 1px solid black;
    /* border color */
    background-color: transparent;
    transition: all 0.3s ease;
}

.light-mode #theme-toggle:hover {
    background-color: black;
    color: white;
}

/* Dark mode button */
.dark-mode #theme-toggle {
    color: white;
    /* icon color */
    border: 1px solid white;
    /* border color */
    background-color: transparent;
    transition: all 0.3s ease;
}

.dark-mode #theme-toggle:hover {
    background-color: white;
    color: black;
}


/* Footer */
footer {
    padding: 30px 0;
}